21250434603110 has 16 divisors (see below), whose sum is σ = 38251098557136. Its totient is φ = 8500103558688.

The previous prime is 21250434603107. The next prime is 21250434603133. The reversal of 21250434603110 is 1130643405212.

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, 7506557 + ... + 9942296.

It is an arithmetic number, because the mean of its divisors is an integer number (2390693659821).

Almost surely, 2^{21250434603110} is an apocalyptic number.

21250434603110 is a deficient number, since it is larger than the sum of its proper divisors (17000663954026).

21250434603110 is a wasteful number, since it uses less digits than its factorization.

21250434603110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17570647.

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 21250434603110 in words is "twenty-one trillion, two hundred fifty billion, four hundred thirty-four million, six hundred three thousand, one hundred ten".