31240233204213 has 32 divisors (see below), whose sum is σ = 45876480652800. Its totient is φ = 18752399265600.

The previous prime is 31240233204211. The next prime is 31240233204239.

It is a happy number.

31240233204213 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 31240233204213 - 2¹ = 31240233204211 is a prime.

It is a super-2 number, since 2×31240233204213² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31240233204211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6205258 + ... + 10049163.

It is an arithmetic number, because the mean of its divisors is an integer number (1433640020400).

Almost surely, 2^{31240233204213} is an apocalyptic number.

31240233204213 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

31240233204213 is a deficient number, since it is larger than the sum of its proper divisors (14636247448587).

31240233204213 is a wasteful number, since it uses less digits than its factorization.

31240233204213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16254993.

The product of its (nonzero) digits is 20736, while the sum is 30.

It can be divided in two parts, 3124023 and 3204213, that added together give a palindrome (6328236).

The spelling of 31240233204213 in words is "thirty-one trillion, two hundred forty billion, two hundred thirty-three million, two hundred four thousand, two hundred thirteen".