31240104213 has 8 divisors (see below), whose sum is σ = 44103676608. Its totient is φ = 19601633984.

The previous prime is 31240104211. The next prime is 31240104239.

31240104213 is nontrivially palindromic in base 10.

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 31240104213 - 2¹ = 31240104211 is a prime.

It is a super-2 number, since 2×31240104213² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31240104213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31240104211) 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, 306275481 + ... + 306275582.

It is an arithmetic number, because the mean of its divisors is an integer number (5512959576).

Almost surely, 2^31240104213 is an apocalyptic number.

It is an amenable number.

31240104213 is a deficient number, since it is larger than the sum of its proper divisors (12863572395).

31240104213 is a wasteful number, since it uses less digits than its factorization.

31240104213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612551083.

The product of its (nonzero) digits is 576, while the sum is 21.

The spelling of 31240104213 in words is "thirty-one billion, two hundred forty million, one hundred four thousand, two hundred thirteen".