21103120013030 has 64 divisors (see below), whose sum is σ = 41474197316160. Its totient is φ = 7667319705600.

The previous prime is 21103120013029. The next prime is 21103120013051. The reversal of 21103120013030 is 3031002130112.

It is a congruent 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, 654608072 + ... + 654640308.

It is an arithmetic number, because the mean of its divisors is an integer number (648034333065).

Almost surely, 2^{21103120013030} is an apocalyptic number.

21103120013030 is a deficient number, since it is larger than the sum of its proper divisors (20371077303130).

21103120013030 is a wasteful number, since it uses less digits than its factorization.

21103120013030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37145.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 21103120013030 its reverse (3031002130112), we get a palindrome (24134122143142).

The spelling of 21103120013030 in words is "twenty-one trillion, one hundred three billion, one hundred twenty million, thirteen thousand, thirty".