31022004122 has 4 divisors (see below), whose sum is σ = 46533006186. Its totient is φ = 15511002060.

The previous prime is 31022004089. The next prime is 31022004133. The reversal of 31022004122 is 22140022013.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22140022013 = 8753 ⋅2529421.

It can be written as a sum of positive squares in only one way, i.e., 21767756521 + 9254247601 = 147539^2 + 96199^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31022004122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7755501029 + ... + 7755501032.

Almost surely, 2^31022004122 is an apocalyptic number.

31022004122 is a deficient number, since it is larger than the sum of its proper divisors (15511002064).

31022004122 is a wasteful number, since it uses less digits than its factorization.

31022004122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15511002063.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 31022004122 its reverse (22140022013), we get a palindrome (53162026135).

The spelling of 31022004122 in words is "thirty-one billion, twenty-two million, four thousand, one hundred twenty-two".