It is an unprimeable number.
Almost surely, 231032145144040 is an apocalyptic number.
It is an amenable number.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31032145144040 is a wasteful number, since it uses less digits than its factorization.
31032145144040 is an evil number, because the sum of its binary digits is even.
Adding to 31032145144040 its reverse (4044154123013), we get a palindrome (35076299267053).
The spelling of 31032145144040 in words is "thirty-one trillion, thirty-two billion, one hundred forty-five million, one hundred forty-four thousand, forty".