21113311010 has 16 divisors (see below), whose sum is σ = 41458865472. Its totient is φ = 7677567600.

The previous prime is 21113310997. The next prime is 21113311031. The reversal of 21113311010 is 1011331112.

It is a happy 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, 95969486 + ... + 95969705.

It is an arithmetic number, because the mean of its divisors is an integer number (2591179092).

Almost surely, 2^21113311010 is an apocalyptic number.

21113311010 is a deficient number, since it is larger than the sum of its proper divisors (20345554462).

21113311010 is a wasteful number, since it uses less digits than its factorization.

21113311010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191939209.

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

Adding to 21113311010 its reverse (1011331112), we get a palindrome (22124642122).

The spelling of 21113311010 in words is "twenty-one billion, one hundred thirteen million, three hundred eleven thousand, ten".