31214220020431 has 8 divisors (see below), whose sum is σ = 35710285107200. Its totient is φ = 26727377633208.

The previous prime is 31214220020369. The next prime is 31214220020483. The reversal of 31214220020431 is 13402002241213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31214220020431 - 2²¹ = 31214217923279 is a prime.

It is a super-2 number, since 2×31214220020431² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31214220020396 and 31214220020405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31214220020131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2305667631 + ... + 2305681168.

It is an arithmetic number, because the mean of its divisors is an integer number (4463785638400).

Almost surely, 2^{31214220020431} is an apocalyptic number.

31214220020431 is a deficient number, since it is larger than the sum of its proper divisors (4496065086769).

31214220020431 is an equidigital number, since it uses as much as digits as its factorization.

31214220020431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4611349773.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 31214220020431 its reverse (13402002241213), we get a palindrome (44616222261644).

The spelling of 31214220020431 in words is "thirty-one trillion, two hundred fourteen billion, two hundred twenty million, twenty thousand, four hundred thirty-one".