31033230131 has 16 divisors (see below), whose sum is σ = 31561488000. Its totient is φ = 30509485248.

The previous prime is 31033230127. The next prime is 31033230149. The reversal of 31033230131 is 13103233013.

It is a cyclic number.

It is not a de Polignac number, because 31033230131 - 2² = 31033230127 is a prime.

It is a super-2 number, since 2×31033230131² (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 (31033230101) 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, 14783720 + ... + 14785818.

It is an arithmetic number, because the mean of its divisors is an integer number (1972593000).

Almost surely, 2^31033230131 is an apocalyptic number.

31033230131 is a deficient number, since it is larger than the sum of its proper divisors (528257869).

31033230131 is a wasteful number, since it uses less digits than its factorization.

31033230131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3058.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 31033230131 its reverse (13103233013), we get a palindrome (44136463144).

The spelling of 31033230131 in words is "thirty-one billion, thirty-three million, two hundred thirty thousand, one hundred thirty-one".