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23120213012213 = 43699952906787
BaseRepresentation
bin1010100000111000110000…
…00101010110111011110101
310000212021022101201112102112
411100130120011112323311
511012300144012342323
6121101140151420405
74604244301022162
oct520343005267365
9100767271645375
1023120213012213
117404255559089
122714a28684705
13cb92c418cc15
1459d04a8a9069
152a162310a178
hex150718156ef5

23120213012213 has 4 divisors (see below), whose sum is σ = 23120266356000. Its totient is φ = 23120159668428.

The previous prime is 23120213012209. The next prime is 23120213012231. The reversal of 23120213012213 is 31221031202132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23120213012213 - 22 = 23120213012209 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23120213512213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26016395 + ... + 26890392.

It is an arithmetic number, because the mean of its divisors is an integer number (5780066589000).

Almost surely, 223120213012213 is an apocalyptic number.

It is an amenable number.

23120213012213 is a deficient number, since it is larger than the sum of its proper divisors (53343787).

23120213012213 is an equidigital number, since it uses as much as digits as its factorization.

23120213012213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53343786.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 23120213012213 its reverse (31221031202132), we get a palindrome (54341244214345).

The spelling of 23120213012213 in words is "twenty-three trillion, one hundred twenty billion, two hundred thirteen million, twelve thousand, two hundred thirteen".

Divisors: 1 436999 52906787 23120213012213