31240533504213 has 48 divisors (see below), whose sum is σ = 49716843126912. Its totient is φ = 18745465200000.

The previous prime is 31240533504211. The next prime is 31240533504217.

31240533504213 is a `hidden beast` number, since 3 + 1 + 2 + 40 + 53 + 350 + 4 + 213 = 666.

31240533504213 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 31240533504213 - 2¹ = 31240533504211 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31240533504211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 368790763 + ... + 368875463.

It is an arithmetic number, because the mean of its divisors is an integer number (1035767565144).

Almost surely, 2^{31240533504213} is an apocalyptic number.

31240533504213 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

31240533504213 is a deficient number, since it is larger than the sum of its proper divisors (18476309622699).

31240533504213 is a wasteful number, since it uses less digits than its factorization.

31240533504213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121706 (or 121703 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

It can be divided in two parts, 3124053 and 3504213, that added together give a palindrome (6628266).

The spelling of 31240533504213 in words is "thirty-one trillion, two hundred forty billion, five hundred thirty-three million, five hundred four thousand, two hundred thirteen".