31402120211001 has 24 divisors (see below), whose sum is σ = 45717379568640. Its totient is φ = 20769176173536.

The previous prime is 31402120210969. The next prime is 31402120211017. The reversal of 31402120211001 is 10011202120413.

31402120211001 is a `hidden beast` number, since 31 + 402 + 1 + 20 + 211 + 0 + 0 + 1 = 666.

It is not a de Polignac number, because 31402120211001 - 2⁵ = 31402120210969 is a prime.

It is a super-2 number, since 2×31402120211001² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31402120211071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33066271 + ... + 34002683.

It is an arithmetic number, because the mean of its divisors is an integer number (1904890815360).

Almost surely, 2^{31402120211001} is an apocalyptic number.

It is an amenable number.

31402120211001 is a deficient number, since it is larger than the sum of its proper divisors (14315259357639).

31402120211001 is a wasteful number, since it uses less digits than its factorization.

31402120211001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965885 (or 965882 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 31402120211001 its reverse (10011202120413), we get a palindrome (41413322331414).

The spelling of 31402120211001 in words is "thirty-one trillion, four hundred two billion, one hundred twenty million, two hundred eleven thousand, one".