31431655613413 has 8 divisors (see below), whose sum is σ = 34292850721056. Its totient is φ = 28571089150800.

The previous prime is 31431655613411. The next prime is 31431655613441.

31431655613413 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 31431655613413 - 2¹ = 31431655613411 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31431655613411) 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, 157056706 + ... + 157256707.

It is an arithmetic number, because the mean of its divisors is an integer number (4286606340132).

Almost surely, 2^{31431655613413} is an apocalyptic number.

It is an amenable number.

31431655613413 is a deficient number, since it is larger than the sum of its proper divisors (2861195107643).

31431655613413 is a wasteful number, since it uses less digits than its factorization.

31431655613413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314322515.

The product of its digits is 1166400, while the sum is 46.

It can be divided in two parts, 3143165 and 5613413, that added together give a palindrome (8756578).

The spelling of 31431655613413 in words is "thirty-one trillion, four hundred thirty-one billion, six hundred fifty-five million, six hundred thirteen thousand, four hundred thirteen".