21163011310 has 48 divisors (see below), whose sum is σ = 44329109760. Its totient is φ = 7253211840.

The previous prime is 21163011307. The next prime is 21163011379. The reversal of 21163011310 is 1311036112.

It is a super-2 number, since 2×21163011310² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 1689651 + ... + 1702129.

It is an arithmetic number, because the mean of its divisors is an integer number (923523120).

Almost surely, 2^21163011310 is an apocalyptic number.

21163011310 is an abundant number, since it is smaller than the sum of its proper divisors (23166098450).

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

21163011310 is a wasteful number, since it uses less digits than its factorization.

21163011310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15961 (or 15954 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 21163011310 its reverse (1311036112), we get a palindrome (22474047422).

The spelling of 21163011310 in words is "twenty-one billion, one hundred sixty-three million, eleven thousand, three hundred ten".