10521403112 has 32 divisors (see below), whose sum is σ = 21525631200. Its totient is φ = 4781438400.

The previous prime is 10521403111. The next prime is 10521403117. The reversal of 10521403112 is 21130412501.

It is a super-2 number, since 2×10521403112² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10521403111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 537839 + ... + 557057.

It is an arithmetic number, because the mean of its divisors is an integer number (672675975).

Almost surely, 2^10521403112 is an apocalyptic number.

It is an amenable number.

10521403112 is an abundant number, since it is smaller than the sum of its proper divisors (11004228088).

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

10521403112 is a wasteful number, since it uses less digits than its factorization.

10521403112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25457 (or 25453 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 10521403112 its reverse (21130412501), we get a palindrome (31651815613).

The spelling of 10521403112 in words is "ten billion, five hundred twenty-one million, four hundred three thousand, one hundred twelve".