10113321012 has 48 divisors (see below), whose sum is σ = 25328161152. Its totient is φ = 3129338880.

The previous prime is 10113320993. The next prime is 10113321073. The reversal of 10113321012 is 21012331101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 10113320982 and 10113321000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 324664 + ... + 354447.

It is an arithmetic number, because the mean of its divisors is an integer number (527670024).

Almost surely, 2^10113321012 is an apocalyptic number.

10113321012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10113321012 is an abundant number, since it is smaller than the sum of its proper divisors (15214840140).

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

10113321012 is a wasteful number, since it uses less digits than its factorization.

10113321012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679208 (or 679206 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 10113321012 its reverse (21012331101), we get a palindrome (31125652113).

The spelling of 10113321012 in words is "ten billion, one hundred thirteen million, three hundred twenty-one thousand, twelve".