31302303012309 has 16 divisors (see below), whose sum is σ = 47898323804160. Its totient is φ = 17812189158960.

The previous prime is 31302303012251. The next prime is 31302303012349. The reversal of 31302303012309 is 90321030320313.

It is not a de Polignac number, because 31302303012309 - 2¹⁶ = 31302302946773 is a prime.

It is a super-2 number, since 2×31302303012309² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31302303012349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3118375437 + ... + 3118385474.

It is an arithmetic number, because the mean of its divisors is an integer number (2993645237760).

Almost surely, 2^{31302303012309} is an apocalyptic number.

It is an amenable number.

31302303012309 is a deficient number, since it is larger than the sum of its proper divisors (16596020791851).

31302303012309 is a wasteful number, since it uses less digits than its factorization.

31302303012309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6236761160.

The product of its (nonzero) digits is 8748, while the sum is 30.

The spelling of 31302303012309 in words is "thirty-one trillion, three hundred two billion, three hundred three million, twelve thousand, three hundred nine".