31134347431 has 4 divisors (see below), whose sum is σ = 33964742664. Its totient is φ = 28303952200.

The previous prime is 31134347411. The next prime is 31134347443. The reversal of 31134347431 is 13474343113.

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

It is a cyclic number.

It is not a de Polignac number, because 31134347431 - 2⁵ = 31134347399 is a prime.

It is a super-2 number, since 2×31134347431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31134347411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1415197600 + ... + 1415197621.

It is an arithmetic number, because the mean of its divisors is an integer number (8491185666).

Almost surely, 2^31134347431 is an apocalyptic number.

31134347431 is a deficient number, since it is larger than the sum of its proper divisors (2830395233).

31134347431 is a wasteful number, since it uses less digits than its factorization.

31134347431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2830395232.

The product of its digits is 36288, while the sum is 34.

The spelling of 31134347431 in words is "thirty-one billion, one hundred thirty-four million, three hundred forty-seven thousand, four hundred thirty-one".