31013110203122 has 4 divisors (see below), whose sum is σ = 46519665304686. Its totient is φ = 15506555101560.

The previous prime is 31013110203073. The next prime is 31013110203143. The reversal of 31013110203122 is 22130201131013.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 29748090380761 + 1265019822361 = 5454181^2 + 1124731^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31013110203094 and 31013110203103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7753277550779 + ... + 7753277550782.

Almost surely, 2^{31013110203122} is an apocalyptic number.

31013110203122 is a deficient number, since it is larger than the sum of its proper divisors (15506555101564).

31013110203122 is a wasteful number, since it uses less digits than its factorization.

31013110203122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15506555101563.

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

Adding to 31013110203122 its reverse (22130201131013), we get a palindrome (53143311334135).

The spelling of 31013110203122 in words is "thirty-one trillion, thirteen billion, one hundred ten million, two hundred three thousand, one hundred twenty-two".