31331320122203 has 8 divisors (see below), whose sum is σ = 34414264665600. Its totient is φ = 28391768348328.

The previous prime is 31331320122169. The next prime is 31331320122211. The reversal of 31331320122203 is 30222102313313.

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

It is a cyclic number.

It is not a de Polignac number, because 31331320122203 - 2¹⁶ = 31331320056667 is a prime.

It is a super-2 number, since 2×31331320122203² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31331320122253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35848191923 + ... + 35848192796.

It is an arithmetic number, because the mean of its divisors is an integer number (4301783083200).

Almost surely, 2^{31331320122203} is an apocalyptic number.

31331320122203 is a deficient number, since it is larger than the sum of its proper divisors (3082944543397).

31331320122203 is a wasteful number, since it uses less digits than its factorization.

31331320122203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71696384761.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 31331320122203 its reverse (30222102313313), we get a palindrome (61553422435516).

The spelling of 31331320122203 in words is "thirty-one trillion, three hundred thirty-one billion, three hundred twenty million, one hundred twenty-two thousand, two hundred three".