23121013032 has 96 divisors (see below), whose sum is σ = 69545563200. Its totient is φ = 7114146624.

The previous prime is 23121013001. The next prime is 23121013087. The reversal of 23121013032 is 23031012132.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 23121012996 and 23121013014.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 280188 + ... + 353195.

It is an arithmetic number, because the mean of its divisors is an integer number (724432950).

Almost surely, 2^23121013032 is an apocalyptic number.

It is an amenable number.

23121013032 is an abundant number, since it is smaller than the sum of its proper divisors (46424550168).

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

23121013032 is a wasteful number, since it uses less digits than its factorization.

23121013032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633424 (or 633401 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 23121013032 its reverse (23031012132), we get a palindrome (46152025164).

The spelling of 23121013032 in words is "twenty-three billion, one hundred twenty-one million, thirteen thousand, thirty-two".