31112000422 has 4 divisors (see below), whose sum is σ = 46668000636. Its totient is φ = 15556000210.

The previous prime is 31112000393. The next prime is 31112000459. The reversal of 31112000422 is 22400021113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22400021113 = 127 ⋅176378119.

It is a junction number, because it is equal to n+sod(n) for n = 31112000396 and 31112000405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7778000104 + ... + 7778000107.

It is an arithmetic number, because the mean of its divisors is an integer number (11667000159).

Almost surely, 2^31112000422 is an apocalyptic number.

31112000422 is a deficient number, since it is larger than the sum of its proper divisors (15556000214).

31112000422 is a wasteful number, since it uses less digits than its factorization.

31112000422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15556000213.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 31112000422 its reverse (22400021113), we get a palindrome (53512021535).

The spelling of 31112000422 in words is "thirty-one billion, one hundred twelve million, four hundred twenty-two", and thus it is an aban number.