31234131 has 12 divisors (see below), whose sum is σ = 46672080. Its totient is φ = 20104560.

The previous prime is 31234109. The next prime is 31234141. The reversal of 31234131 is 13143213.

It is not a de Polignac number, because 31234131 - 2⁷ = 31234003 is a prime.

It is a super-3 number, since 3×31234131³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (31234141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59575 + ... + 60096.

It is an arithmetic number, because the mean of its divisors is an integer number (3889340).

Almost surely, 2^31234131 is an apocalyptic number.

31234131 is a deficient number, since it is larger than the sum of its proper divisors (15437949).

31234131 is a wasteful number, since it uses less digits than its factorization.

31234131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119706 (or 119703 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 31234131 is about 5588.7503970029. The cubic root of 31234131 is about 314.9269369473.

Adding to 31234131 its reverse (13143213), we get a palindrome (44377344).

It can be divided in two parts, 312 and 34131, that added together give a palindrome (34443).

The spelling of 31234131 in words is "thirty-one million, two hundred thirty-four thousand, one hundred thirty-one".