31122001110203 has 8 divisors (see below), whose sum is σ = 32958341067600. Its totient is φ = 29286287153920.

The previous prime is 31122001110157. The next prime is 31122001110241. The reversal of 31122001110203 is 30201110022113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31122001110203 - 2⁴⁴ = 13529815065787 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31122001118203) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 156397913 + ... + 156596778.

It is an arithmetic number, because the mean of its divisors is an integer number (4119792633450).

Almost surely, 2^{31122001110203} is an apocalyptic number.

31122001110203 is a deficient number, since it is larger than the sum of its proper divisors (1836339957397).

31122001110203 is a wasteful number, since it uses less digits than its factorization.

31122001110203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313000557.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 31122001110203 its reverse (30201110022113), we get a palindrome (61323111132316).

The spelling of 31122001110203 in words is "thirty-one trillion, one hundred twenty-two billion, one million, one hundred ten thousand, two hundred three".