23256321212 has 12 divisors (see below), whose sum is σ = 40699913520. Its totient is φ = 11627774496.

The previous prime is 23256321199. The next prime is 23256321259. The reversal of 23256321212 is 21212365232.

It is a super-2 number, since 2×23256321212² (a number of 22 digits) contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71489 + ... + 227207.

It is an arithmetic number, because the mean of its divisors is an integer number (3391659460).

Almost surely, 2^23256321212 is an apocalyptic number.

It is an amenable number.

23256321212 is a deficient number, since it is larger than the sum of its proper divisors (17443592308).

23256321212 is a wasteful number, since it uses less digits than its factorization.

23256321212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193060 (or 193058 counting only the distinct ones).

The product of its digits is 8640, while the sum is 29.

Adding to 23256321212 its reverse (21212365232), we get a palindrome (44468686444).

The spelling of 23256321212 in words is "twenty-three billion, two hundred fifty-six million, three hundred twenty-one thousand, two hundred twelve".