20121020232 has 64 divisors (see below), whose sum is σ = 50602104000. Its totient is φ = 6667186944.

The previous prime is 20121020173. The next prime is 20121020237. The reversal of 20121020232 is 23202012102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20121020237) 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, 2942994 + ... + 2949822.

It is an arithmetic number, because the mean of its divisors is an integer number (790657875).

Almost surely, 2^20121020232 is an apocalyptic number.

It is an amenable number.

20121020232 is an abundant number, since it is smaller than the sum of its proper divisors (30481083768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20121020232 is a wasteful number, since it uses less digits than its factorization.

20121020232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7550 (or 7546 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20121020232 its reverse (23202012102), we get a palindrome (43323032334).

The spelling of 20121020232 in words is "twenty billion, one hundred twenty-one million, twenty thousand, two hundred thirty-two".