31234030131 has 16 divisors (see below), whose sum is σ = 41774780160. Its totient is φ = 20758036320.

The previous prime is 31234030127. The next prime is 31234030189. The reversal of 31234030131 is 13103043213.

It is not a de Polignac number, because 31234030131 - 2² = 31234030127 is a prime.

It is a super-2 number, since 2×31234030131² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31234030098 and 31234030107.

It is not an unprimeable number, because it can be changed into a prime (31234430131) 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 15 ways as a sum of consecutive naturals, for example, 3077341 + ... + 3087473.

It is an arithmetic number, because the mean of its divisors is an integer number (2610923760).

Almost surely, 2^31234030131 is an apocalyptic number.

31234030131 is a deficient number, since it is larger than the sum of its proper divisors (10540750029).

31234030131 is a wasteful number, since it uses less digits than its factorization.

31234030131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13226.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 31234030131 its reverse (13103043213), we get a palindrome (44337073344).

The spelling of 31234030131 in words is "thirty-one billion, two hundred thirty-four million, thirty thousand, one hundred thirty-one".