31124233242 has 24 divisors (see below), whose sum is σ = 67812582240. Its totient is φ = 10316783880.

The previous prime is 31124233229. The next prime is 31124233247. The reversal of 31124233242 is 24233242113.

31124233242 is a `hidden beast` number, since 311 + 2 + 4 + 23 + 324 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (31124233247) 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, 4826734 + ... + 4833177.

It is an arithmetic number, because the mean of its divisors is an integer number (2825524260).

Almost surely, 2^31124233242 is an apocalyptic number.

31124233242 is an abundant number, since it is smaller than the sum of its proper divisors (36688348998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31124233242 is a wasteful number, since it uses less digits than its factorization.

31124233242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9660098 (or 9660095 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

Adding to 31124233242 its reverse (24233242113), we get a palindrome (55357475355).

The spelling of 31124233242 in words is "thirty-one billion, one hundred twenty-four million, two hundred thirty-three thousand, two hundred forty-two".