31140412011 has 80 divisors (see below), whose sum is σ = 49364840448. Its totient is φ = 19523592000.

The previous prime is 31140411983. The next prime is 31140412013. The reversal of 31140412011 is 11021404113.

It is not a de Polignac number, because 31140412011 - 2⁶ = 31140411947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31140412013) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 31422726 + ... + 31423716.

Almost surely, 2^31140412011 is an apocalyptic number.

31140412011 is a deficient number, since it is larger than the sum of its proper divisors (18224428437).

31140412011 is a wasteful number, since it uses less digits than its factorization.

31140412011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294 (or 1285 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 31140412011 its reverse (11021404113), we get a palindrome (42161816124).

The spelling of 31140412011 in words is "thirty-one billion, one hundred forty million, four hundred twelve thousand, eleven".