31241545542213 has 4 divisors (see below), whose sum is σ = 41655394056288. Its totient is φ = 20827697028140.

The previous prime is 31241545542203. The next prime is 31241545542281. The reversal of 31241545542213 is 31224554514213.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31241545542213 - 2¹³ = 31241545534021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31241545542203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5206924257033 + ... + 5206924257038.

It is an arithmetic number, because the mean of its divisors is an integer number (10413848514072).

Almost surely, 2^{31241545542213} is an apocalyptic number.

It is an amenable number.

31241545542213 is a deficient number, since it is larger than the sum of its proper divisors (10413848514075).

31241545542213 is a wasteful number, since it uses less digits than its factorization.

31241545542213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10413848514074.

The product of its digits is 576000, while the sum is 42.

The spelling of 31241545542213 in words is "thirty-one trillion, two hundred forty-one billion, five hundred forty-five million, five hundred forty-two thousand, two hundred thirteen".