31022224140 has 24 divisors (see below), whose sum is σ = 86862227760. Its totient is φ = 8272593088.

The previous prime is 31022224127. The next prime is 31022224159. The reversal of 31022224140 is 4142222013.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258518475 + ... + 258518594.

It is an arithmetic number, because the mean of its divisors is an integer number (3619259490).

Almost surely, 2^31022224140 is an apocalyptic number.

31022224140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31022224140 is an abundant number, since it is smaller than the sum of its proper divisors (55840003620).

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

31022224140 is a wasteful number, since it uses less digits than its factorization.

31022224140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517037081 (or 517037079 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 31022224140 its reverse (4142222013), we get a palindrome (35164446153).

The spelling of 31022224140 in words is "thirty-one billion, twenty-two million, two hundred twenty-four thousand, one hundred forty".