31003123100131 has 16 divisors (see below), whose sum is σ = 38378254670784. Its totient is φ = 24388151958144.

The previous prime is 31003123100119. The next prime is 31003123100263. The reversal of 31003123100131 is 13100132130013.

It is not a de Polignac number, because 31003123100131 - 2¹⁵ = 31003123067363 is a prime.

It is a super-2 number, since 2×31003123100131² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31003123100099 and 31003123100108.

It is not an unprimeable number, because it can be changed into a prime (31003123100731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 984648016 + ... + 984679501.

It is an arithmetic number, because the mean of its divisors is an integer number (2398640916924).

Almost surely, 2^{31003123100131} is an apocalyptic number.

31003123100131 is a deficient number, since it is larger than the sum of its proper divisors (7375131570653).

31003123100131 is a wasteful number, since it uses less digits than its factorization.

31003123100131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1969327710.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 31003123100131 its reverse (13100132130013), we get a palindrome (44103255230144).

The spelling of 31003123100131 in words is "thirty-one trillion, three billion, one hundred twenty-three million, one hundred thousand, one hundred thirty-one".