31311201030122 has 16 divisors (see below), whose sum is σ = 50582395154760. Its totient is φ = 14450534203392.

The previous prime is 31311201030119. The next prime is 31311201030169. The reversal of 31311201030122 is 22103010211313.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9273236949601 + 22037964080521 = 3045199^2 + 4694461^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31311201030094 and 31311201030103.

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, 32404247 + ... + 33356522.

Almost surely, 2^{31311201030122} is an apocalyptic number.

31311201030122 is a deficient number, since it is larger than the sum of its proper divisors (19271194124638).

31311201030122 is a wasteful number, since it uses less digits than its factorization.

31311201030122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65779097.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 31311201030122 its reverse (22103010211313), we get a palindrome (53414211241435).

The spelling of 31311201030122 in words is "thirty-one trillion, three hundred eleven billion, two hundred one million, thirty thousand, one hundred twenty-two".