23234321512 has 8 divisors (see below), whose sum is σ = 43564352850. Its totient is φ = 11617160752.

The previous prime is 23234321489. The next prime is 23234321519. The reversal of 23234321512 is 21512343232.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 22250495556 + 983825956 = 149166^2 + 31366^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×23234321512² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23234321519) by changing a digit.

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 as a sum of consecutive naturals, namely, 1452145087 + ... + 1452145102.

Almost surely, 2^23234321512 is an apocalyptic number.

It is an amenable number.

23234321512 is a deficient number, since it is larger than the sum of its proper divisors (20330031338).

23234321512 is a wasteful number, since it uses less digits than its factorization.

23234321512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2904290195 (or 2904290191 counting only the distinct ones).

The product of its digits is 8640, while the sum is 28.

Adding to 23234321512 its reverse (21512343232), we get a palindrome (44746664744).

The spelling of 23234321512 in words is "twenty-three billion, two hundred thirty-four million, three hundred twenty-one thousand, five hundred twelve".