31420202413 has 4 divisors (see below), whose sum is σ = 31731293628. Its totient is φ = 31109111200.

The previous prime is 31420202381. The next prime is 31420202431.

31420202413 is nontrivially palindromic in base 10.

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 24232214889 + 7187987524 = 155667^2 + 84782^2 .

It is a cyclic number.

It is not a de Polignac number, because 31420202413 - 2⁵ = 31420202381 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31420202483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155545456 + ... + 155545657.

It is an arithmetic number, because the mean of its divisors is an integer number (7932823407).

Almost surely, 2^31420202413 is an apocalyptic number.

It is an amenable number.

31420202413 is a deficient number, since it is larger than the sum of its proper divisors (311091215).

31420202413 is a wasteful number, since it uses less digits than its factorization.

31420202413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311091214.

The product of its (nonzero) digits is 1152, while the sum is 22.

The spelling of 31420202413 in words is "thirty-one billion, four hundred twenty million, two hundred two thousand, four hundred thirteen".