31232122123213 has 16 divisors (see below), whose sum is σ = 34409160862272. Its totient is φ = 28111382640000.

The previous prime is 31232122123211. The next prime is 31232122123291.

31232122123213 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 31232122123213 - 2¹ = 31232122123211 is a prime.

It is a super-2 number, since 2×31232122123213² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31232122123211) 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, 162468793 + ... + 162660913.

It is an arithmetic number, because the mean of its divisors is an integer number (2150572553892).

Almost surely, 2^{31232122123213} is an apocalyptic number.

It is an amenable number.

31232122123213 is a deficient number, since it is larger than the sum of its proper divisors (3177038739059).

31232122123213 is a wasteful number, since it uses less digits than its factorization.

31232122123213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338556.

The product of its digits is 5184, while the sum is 28.

It can be divided in two parts, 3123212 and 2123213, that added together give a palindrome (5246425).

The spelling of 31232122123213 in words is "thirty-one trillion, two hundred thirty-two billion, one hundred twenty-two million, one hundred twenty-three thousand, two hundred thirteen".