31300302113 has 4 divisors (see below), whose sum is σ = 31307540160. Its totient is φ = 31293064068.

The previous prime is 31300302109. The next prime is 31300302139. The reversal of 31300302113 is 31120300313.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31120300313 = 81281 ⋅382873.

It is a cyclic number.

It is not a de Polignac number, because 31300302113 - 2² = 31300302109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31300302091 and 31300302100.

It is not an unprimeable number, because it can be changed into a prime (31300302193) 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, 3612533 + ... + 3621186.

It is an arithmetic number, because the mean of its divisors is an integer number (7826885040).

Almost surely, 2^31300302113 is an apocalyptic number.

It is an amenable number.

31300302113 is a deficient number, since it is larger than the sum of its proper divisors (7238047).

31300302113 is an equidigital number, since it uses as much as digits as its factorization.

31300302113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7238046.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 31300302113 its reverse (31120300313), we get a palindrome (62420602426).

The spelling of 31300302113 in words is "thirty-one billion, three hundred million, three hundred two thousand, one hundred thirteen".