213121231403110 has 32 divisors (see below), whose sum is σ = 392975966384064. Its totient is φ = 83169005376000.

The previous prime is 213121231403039. The next prime is 213121231403203. The reversal of 213121231403110 is 11304132121312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185859930 + ... + 187003090.

It is an arithmetic number, because the mean of its divisors is an integer number (12280498949502).

Almost surely, 2^{213121231403110} is an apocalyptic number.

213121231403110 is a deficient number, since it is larger than the sum of its proper divisors (179854734980954).

213121231403110 is a wasteful number, since it uses less digits than its factorization.

213121231403110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1597920.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 213121231403110 its reverse (11304132121312), we get a palindrome (224425363524422).

The spelling of 213121231403110 in words is "two hundred thirteen trillion, one hundred twenty-one billion, two hundred thirty-one million, four hundred three thousand, one hundred ten".