31302420313 has 4 divisors (see below), whose sum is σ = 31373080848. Its totient is φ = 31231759780.

The previous prime is 31302420311. The next prime is 31302420337.

31302420313 is nontrivially palindromic in base 10.

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 31302420313 - 2¹ = 31302420311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31302420311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35329603 + ... + 35330488.

It is an arithmetic number, because the mean of its divisors is an integer number (7843270212).

Almost surely, 2^31302420313 is an apocalyptic number.

It is an amenable number.

31302420313 is a deficient number, since it is larger than the sum of its proper divisors (70660535).

31302420313 is an equidigital number, since it uses as much as digits as its factorization.

31302420313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70660534.

The product of its (nonzero) digits is 1296, while the sum is 22.

The spelling of 31302420313 in words is "thirty-one billion, three hundred two million, four hundred twenty thousand, three hundred thirteen".