31301130113031 has 4 divisors (see below), whose sum is σ = 41734840150712. Its totient is φ = 20867420075352.

The previous prime is 31301130113009. The next prime is 31301130113069. The reversal of 31301130113031 is 13031103110313.

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

It is not a de Polignac number, because 31301130113031 - 2⁵ = 31301130112999 is a prime.

It is a super-2 number, since 2×31301130113031² (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 = 31301130112989 and 31301130113007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31301130113431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5216855018836 + ... + 5216855018841.

It is an arithmetic number, because the mean of its divisors is an integer number (10433710037678).

Almost surely, 2^{31301130113031} is an apocalyptic number.

31301130113031 is a deficient number, since it is larger than the sum of its proper divisors (10433710037681).

31301130113031 is a wasteful number, since it uses less digits than its factorization.

31301130113031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10433710037680.

The product of its (nonzero) digits is 243, while the sum is 21.

Adding to 31301130113031 its reverse (13031103110313), we get a palindrome (44332233223344).

The spelling of 31301130113031 in words is "thirty-one trillion, three hundred one billion, one hundred thirty million, one hundred thirteen thousand, thirty-one".