31000274131 has 8 divisors (see below), whose sum is σ = 31196610000. Its totient is φ = 30804195840.

The previous prime is 31000274113. The next prime is 31000274183. The reversal of 31000274131 is 13147200013.

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 31000274131 - 2¹³ = 31000265939 is a prime.

It is a super-2 number, since 2×31000274131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31000274191) 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 7 ways as a sum of consecutive naturals, for example, 179995 + ... + 307243.

It is an arithmetic number, because the mean of its divisors is an integer number (3899576250).

Almost surely, 2^31000274131 is an apocalyptic number.

31000274131 is a deficient number, since it is larger than the sum of its proper divisors (196335869).

31000274131 is a wasteful number, since it uses less digits than its factorization.

31000274131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128789.

The product of its (nonzero) digits is 504, while the sum is 22.

Adding to 31000274131 its reverse (13147200013), we get a palindrome (44147474144).

The spelling of 31000274131 in words is "thirty-one billion, two hundred seventy-four thousand, one hundred thirty-one".