31132033131 has 4 divisors (see below), whose sum is σ = 41509377512. Its totient is φ = 20754688752.

The previous prime is 31132033109. The next prime is 31132033133. The reversal of 31132033131 is 13133023113.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 31132033131 - 2¹¹ = 31132031083 is a prime.

It is a super-2 number, since 2×31132033131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31132033098 and 31132033107.

It is not an unprimeable number, because it can be changed into a prime (31132033133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5188672186 + ... + 5188672191.

It is an arithmetic number, because the mean of its divisors is an integer number (10377344378).

Almost surely, 2^31132033131 is an apocalyptic number.

31132033131 is a deficient number, since it is larger than the sum of its proper divisors (10377344381).

31132033131 is a wasteful number, since it uses less digits than its factorization.

31132033131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10377344380.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 31132033131 its reverse (13133023113), we get a palindrome (44265056244).

The spelling of 31132033131 in words is "thirty-one billion, one hundred thirty-two million, thirty-three thousand, one hundred thirty-one".