31113132210203 has 16 divisors (see below), whose sum is σ = 33191817871680. Its totient is φ = 29062161386496.

The previous prime is 31113132210179. The next prime is 31113132210227. The reversal of 31113132210203 is 30201223131113.

It is an interprime number because it is at equal distance from previous prime (31113132210179) and next prime (31113132210227).

It is not a de Polignac number, because 31113132210203 - 2²² = 31113128015899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31113132210403) 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, 8009618 + ... + 11241896.

It is an arithmetic number, because the mean of its divisors is an integer number (2074488616980).

Almost surely, 2^{31113132210203} is an apocalyptic number.

31113132210203 is a deficient number, since it is larger than the sum of its proper divisors (2078685661477).

31113132210203 is a wasteful number, since it uses less digits than its factorization.

31113132210203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3236566.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 31113132210203 its reverse (30201223131113), we get a palindrome (61314355341316).

The spelling of 31113132210203 in words is "thirty-one trillion, one hundred thirteen billion, one hundred thirty-two million, two hundred ten thousand, two hundred three".