31013132210121 has 32 divisors (see below), whose sum is σ = 44340618032640. Its totient is φ = 19211534125056.

The previous prime is 31013132210119. The next prime is 31013132210227. The reversal of 31013132210121 is 12101223131013.

It is not a de Polignac number, because 31013132210121 - 2¹ = 31013132210119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31013132910121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57900085 + ... + 58433261.

It is an arithmetic number, because the mean of its divisors is an integer number (1385644313520).

Almost surely, 2^{31013132210121} is an apocalyptic number.

It is an amenable number.

31013132210121 is a deficient number, since it is larger than the sum of its proper divisors (13327485822519).

31013132210121 is a wasteful number, since it uses less digits than its factorization.

31013132210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547713.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 31013132210121 its reverse (12101223131013), we get a palindrome (43114355341134).

The spelling of 31013132210121 in words is "thirty-one trillion, thirteen billion, one hundred thirty-two million, two hundred ten thousand, one hundred twenty-one".