21113011310 has 16 divisors (see below), whose sum is σ = 38005719696. Its totient is φ = 8444693568.

The previous prime is 21113011307. The next prime is 21113011327. The reversal of 21113011310 is 1311031112.

It is a happy number.

It is a super-2 number, since 2×21113011310² (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 7 ways as a sum of consecutive naturals, for example, 140954 + ... + 249186.

It is an arithmetic number, because the mean of its divisors is an integer number (2375357481).

Almost surely, 2^21113011310 is an apocalyptic number.

21113011310 is a deficient number, since it is larger than the sum of its proper divisors (16892708386).

21113011310 is a wasteful number, since it uses less digits than its factorization.

21113011310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127747.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 21113011310 its reverse (1311031112), we get a palindrome (22424042422).

The spelling of 21113011310 in words is "twenty-one billion, one hundred thirteen million, eleven thousand, three hundred ten".