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23130030111221 = 1110120819109011
BaseRepresentation
bin1010100001001011000010…
…01110100111100111110101
310000220012122120022211120002
411100211201032213213311
511012430300202024341
6121105442242121045
74605042465004115
oct520454116474765
9100805576284502
1023130030111221
117408432aa9950
122716908350185
13cba1c9ccbc47
1459d6dc61b045
152a19e9dda29b
hex1509613a79f5

23130030111221 has 8 divisors (see below), whose sum is σ = 25482589430688. Its totient is φ = 20819109010000.

The previous prime is 23130030111193. The next prime is 23130030111269. The reversal of 23130030111221 is 12211103003132.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23130030111221 - 226 = 23129963002357 is a prime.

It is a super-2 number, since 2×231300301112212 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23130030111193 and 23130030111202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23130030111271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10409553395 + ... + 10409555616.

It is an arithmetic number, because the mean of its divisors is an integer number (3185323678836).

Almost surely, 223130030111221 is an apocalyptic number.

It is an amenable number.

23130030111221 is a deficient number, since it is larger than the sum of its proper divisors (2352559319467).

23130030111221 is a wasteful number, since it uses less digits than its factorization.

23130030111221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20819109123.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 23130030111221 its reverse (12211103003132), we get a palindrome (35341133114353).

The spelling of 23130030111221 in words is "twenty-three trillion, one hundred thirty billion, thirty million, one hundred eleven thousand, two hundred twenty-one".

Divisors: 1 11 101 1111 20819109011 229010199121 2102730010111 23130030111221