21111023103010 has 64 divisors (see below), whose sum is σ = 38169347948928. Its totient is φ = 8406855235584.

The previous prime is 21111023103007. The next prime is 21111023103043. The reversal of 21111023103010 is 1030132011112.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3604406002 + ... + 3604411858.

It is an arithmetic number, because the mean of its divisors is an integer number (596396061702).

Almost surely, 2^{21111023103010} is an apocalyptic number.

21111023103010 is a deficient number, since it is larger than the sum of its proper divisors (17058324845918).

21111023103010 is a wasteful number, since it uses less digits than its factorization.

21111023103010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8035.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 21111023103010 its reverse (1030132011112), we get a palindrome (22141155114122).

The spelling of 21111023103010 in words is "twenty-one trillion, one hundred eleven billion, twenty-three million, one hundred three thousand, ten".