31233022030213 has 4 divisors (see below), whose sum is σ = 31247528777388. Its totient is φ = 31218515283040.

The previous prime is 31233022030159. The next prime is 31233022030219. The reversal of 31233022030213 is 31203022033213.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10207660773249 + 21025361256964 = 3194943^2 + 4585342^2 .

It is a cyclic number.

It is not a de Polignac number, because 31233022030213 - 2¹⁷ = 31233021899141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31233022030219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7253370358 + ... + 7253374663.

It is an arithmetic number, because the mean of its divisors is an integer number (7811882194347).

Almost surely, 2^{31233022030213} is an apocalyptic number.

It is an amenable number.

31233022030213 is a deficient number, since it is larger than the sum of its proper divisors (14506747175).

31233022030213 is a wasteful number, since it uses less digits than its factorization.

31233022030213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14506747174.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 31233022030213 its reverse (31203022033213), we get a palindrome (62436044063426).

It can be divided in two parts, 3123302 and 2030213, that added together give a palindrome (5153515).

The spelling of 31233022030213 in words is "thirty-one trillion, two hundred thirty-three billion, twenty-two million, thirty thousand, two hundred thirteen".