31112212322 has 8 divisors (see below), whose sum is σ = 47548852956. Its totient is φ = 15262594672.

The previous prime is 31112212319. The next prime is 31112212331. The reversal of 31112212322 is 22321221113.

It can be written as a sum of positive squares in 2 ways, for example, as 30099127081 + 1013085241 = 173491^2 + 31829^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 31112212294 and 31112212303.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146755613 + ... + 146755824.

Almost surely, 2^31112212322 is an apocalyptic number.

31112212322 is a deficient number, since it is larger than the sum of its proper divisors (16436640634).

31112212322 is a wasteful number, since it uses less digits than its factorization.

31112212322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293511492.

The product of its digits is 288, while the sum is 20.

Adding to 31112212322 its reverse (22321221113), we get a palindrome (53433433435).

The spelling of 31112212322 in words is "thirty-one billion, one hundred twelve million, two hundred twelve thousand, three hundred twenty-two".