31324556040413 has 4 divisors (see below), whose sum is σ = 31325723456508. Its totient is φ = 31323388624320.

The previous prime is 31324556040403. The next prime is 31324556040431. The reversal of 31324556040413 is 31404065542313.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1522859657764 + 29801696382649 = 1234042^2 + 5459093^2 .

It is a cyclic number.

It is not a de Polignac number, because 31324556040413 - 2²⁴ = 31324539263197 is a prime.

It is a super-2 number, since 2×31324556040413² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31324556040403) 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, 583667798 + ... + 583721463.

It is an arithmetic number, because the mean of its divisors is an integer number (7831430864127).

Almost surely, 2^{31324556040413} is an apocalyptic number.

It is an amenable number.

31324556040413 is a deficient number, since it is larger than the sum of its proper divisors (1167416095).

31324556040413 is a wasteful number, since it uses less digits than its factorization.

31324556040413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167416094.

The product of its (nonzero) digits is 518400, while the sum is 41.

The spelling of 31324556040413 in words is "thirty-one trillion, three hundred twenty-four billion, five hundred fifty-six million, forty thousand, four hundred thirteen".