31402200401031 has 4 divisors (see below), whose sum is σ = 41869600534712. Its totient is φ = 20934800267352.

The previous prime is 31402200401027. The next prime is 31402200401063. The reversal of 31402200401031 is 13010400220413.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 31402200401031 - 2² = 31402200401027 is a prime.

It is a super-2 number, since 2×31402200401031² (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 = 31402200400989 and 31402200401007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31402200405031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5233700066836 + ... + 5233700066841.

It is an arithmetic number, because the mean of its divisors is an integer number (10467400133678).

Almost surely, 2^{31402200401031} is an apocalyptic number.

31402200401031 is a deficient number, since it is larger than the sum of its proper divisors (10467400133681).

31402200401031 is a wasteful number, since it uses less digits than its factorization.

31402200401031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10467400133680.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 31402200401031 its reverse (13010400220413), we get a palindrome (44412600621444).

The spelling of 31402200401031 in words is "thirty-one trillion, four hundred two billion, two hundred million, four hundred one thousand, thirty-one".