31040145050 has 24 divisors (see below), whose sum is σ = 57859409856. Its totient is φ = 12389232240.

The previous prime is 31040145047. The next prime is 31040145053. The reversal of 31040145050 is 5054104013.

It is an interprime number because it is at equal distance from previous prime (31040145047) and next prime (31040145053).

It is not an unprimeable number, because it can be changed into a prime (31040145053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 647264 + ... + 693563.

It is an arithmetic number, because the mean of its divisors is an integer number (2410808744).

Almost surely, 2^31040145050 is an apocalyptic number.

31040145050 is a deficient number, since it is larger than the sum of its proper divisors (26819264806).

31040145050 is a wasteful number, since it uses less digits than its factorization.

31040145050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341302 (or 1341297 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 31040145050 its reverse (5054104013), we get a palindrome (36094249063).

The spelling of 31040145050 in words is "thirty-one billion, forty million, one hundred forty-five thousand, fifty".