31302310000009 has 4 divisors (see below), whose sum is σ = 31340069120260. Its totient is φ = 31264550879760.

The previous prime is 31302310000007. The next prime is 31302310000061. The reversal of 31302310000009 is 90000001320313.

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 21937485960009 + 9364824040000 = 4683747^2 + 3060200^2 .

It is a cyclic number.

It is not a de Polignac number, because 31302310000009 - 2¹ = 31302310000007 is a prime.

It is a super-2 number, since 2×31302310000009² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31302310000007) 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, 18879558882 + ... + 18879560539.

It is an arithmetic number, because the mean of its divisors is an integer number (7835017280065).

Almost surely, 2^{31302310000009} is an apocalyptic number.

It is an amenable number.

31302310000009 is a deficient number, since it is larger than the sum of its proper divisors (37759120251).

31302310000009 is an equidigital number, since it uses as much as digits as its factorization.

31302310000009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37759120250.

The product of its (nonzero) digits is 486, while the sum is 22.

The spelling of 31302310000009 in words is "thirty-one trillion, three hundred two billion, three hundred ten million, nine", and thus it is an aban number.