10521310400 has 42 divisors (see below), whose sum is σ = 25889003340. Its totient is φ = 4208523520.

The previous prime is 10521310381. The next prime is 10521310409. The reversal of 10521310400 is 401312501.

It is a super-2 number, since 2×10521310400² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10521310409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3286310 + ... + 3289509.

Almost surely, 2^10521310400 is an apocalyptic number.

10521310400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10521310400 is an abundant number, since it is smaller than the sum of its proper divisors (15367692940).

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

10521310400 is an equidigital number, since it uses as much as digits as its factorization.

10521310400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6575841 (or 6575826 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

Adding to 10521310400 its reverse (401312501), we get a palindrome (10922622901).

The spelling of 10521310400 in words is "ten billion, five hundred twenty-one million, three hundred ten thousand, four hundred".