31122320101203 has 16 divisors (see below), whose sum is σ = 42625071175680. Its totient is φ = 20184078564576.

The previous prime is 31122320101193. The next prime is 31122320101207. The reversal of 31122320101203 is 30210102322113.

It is not a de Polignac number, because 31122320101203 - 2⁸ = 31122320100947 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31122320101203.

It is not an unprimeable number, because it can be changed into a prime (31122320101207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22751283 + ... + 24080396.

It is an arithmetic number, because the mean of its divisors is an integer number (2664066948480).

Almost surely, 2^{31122320101203} is an apocalyptic number.

31122320101203 is a deficient number, since it is larger than the sum of its proper divisors (11502751074477).

31122320101203 is a wasteful number, since it uses less digits than its factorization.

31122320101203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46837706.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 31122320101203 its reverse (30210102322113), we get a palindrome (61332422423316).

The spelling of 31122320101203 in words is "thirty-one trillion, one hundred twenty-two billion, three hundred twenty million, one hundred one thousand, two hundred three".