12023522512 has 10 divisors (see below), whose sum is σ = 23295574898. Its totient is φ = 6011761248.

The previous prime is 12023522501. The next prime is 12023522519. The reversal of 12023522512 is 21522532021.

It can be written as a sum of positive squares in only one way, i.e., 6087744576 + 5935777936 = 78024^2 + 77044^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12023522519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 375735063 + ... + 375735094.

Almost surely, 2^12023522512 is an apocalyptic number.

It is an amenable number.

12023522512 is a deficient number, since it is larger than the sum of its proper divisors (11272052386).

12023522512 is an equidigital number, since it uses as much as digits as its factorization.

12023522512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751470165 (or 751470159 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The spelling of 12023522512 in words is "twelve billion, twenty-three million, five hundred twenty-two thousand, five hundred twelve".