31384138413 has 16 divisors (see below), whose sum is σ = 44327964096. Its totient is φ = 19682699520.

The previous prime is 31384138399. The next prime is 31384138427. The reversal of 31384138413 is 31483148313.

It is an interprime number because it is at equal distance from previous prime (31384138399) and next prime (31384138427).

It is not a de Polignac number, because 31384138413 - 2⁵ = 31384138381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31384138013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35706 + ... + 253067.

It is an arithmetic number, because the mean of its divisors is an integer number (2770497756).

Almost surely, 2^31384138413 is an apocalyptic number.

It is an amenable number.

31384138413 is a deficient number, since it is larger than the sum of its proper divisors (12943825683).

31384138413 is a wasteful number, since it uses less digits than its factorization.

31384138413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290924.

The product of its digits is 82944, while the sum is 39.

The spelling of 31384138413 in words is "thirty-one billion, three hundred eighty-four million, one hundred thirty-eight thousand, four hundred thirteen".