31144222344 has 32 divisors (see below), whose sum is σ = 77873832000. Its totient is φ = 10379637312.

The previous prime is 31144222321. The next prime is 31144222367. The reversal of 31144222344 is 44322244113.

It is an interprime number because it is at equal distance from previous prime (31144222321) and next prime (31144222367).

It is a nude number because it is divisible by every one of its digits.

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, 37077 + ... + 252315.

It is an arithmetic number, because the mean of its divisors is an integer number (2433557250).

Almost surely, 2^31144222344 is an apocalyptic number.

It is an amenable number.

31144222344 is an abundant number, since it is smaller than the sum of its proper divisors (46729609656).

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

31144222344 is a wasteful number, since it uses less digits than its factorization.

31144222344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221277 (or 221273 counting only the distinct ones).

The product of its digits is 18432, while the sum is 30.

Adding to 31144222344 its reverse (44322244113), we get a palindrome (75466466457).

The spelling of 31144222344 in words is "thirty-one billion, one hundred forty-four million, two hundred twenty-two thousand, three hundred forty-four".