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23302121123 = 2321126318257
BaseRepresentation
bin10101101100111010…
…100010011010100011
32020010222001101212002
4111230322202122203
5340210320333443
614412125154215
71453306522121
oct255472423243
966128041762
1023302121123
119978492546
1246239bb96b
132274850568
1411b0a94911
15915adc2b8
hex56cea26a3

23302121123 has 16 divisors (see below), whose sum is σ = 24524729856. Its totient is φ = 22097792640.

The previous prime is 23302121071. The next prime is 23302121173. The reversal of 23302121123 is 32112120332.

It is a cyclic number.

It is not a de Polignac number, because 23302121123 - 216 = 23302055587 is a prime.

It is a super-2 number, since 2×233021211232 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23302121095 and 23302121104.

It is not an unprimeable number, because it can be changed into a prime (23302121173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1267211 + ... + 1285467.

It is an arithmetic number, because the mean of its divisors is an integer number (1532795616).

Almost surely, 223302121123 is an apocalyptic number.

23302121123 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

23302121123 is a deficient number, since it is larger than the sum of its proper divisors (1222608733).

23302121123 is a wasteful number, since it uses less digits than its factorization.

23302121123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18754.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 23302121123 its reverse (32112120332), we get a palindrome (55414241455).

The spelling of 23302121123 in words is "twenty-three billion, three hundred two million, one hundred twenty-one thousand, one hundred twenty-three".

Divisors: 1 23 211 263 4853 6049 18257 55493 419911 1276339 3852227 4801591 88601221 110436593 1013135701 23302121123