31302020010213 has 24 divisors (see below), whose sum is σ = 45764915495936. Its totient is φ = 20615285052000.

The previous prime is 31302020010193. The next prime is 31302020010293. The reversal of 31302020010213 is 31201002020313.

It is not a de Polignac number, because 31302020010213 - 2¹³ = 31302020002021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31302020010293) 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 23 ways as a sum of consecutive naturals, for example, 63381445 + ... + 63873402.

Almost surely, 2^{31302020010213} is an apocalyptic number.

It is an amenable number.

31302020010213 is a deficient number, since it is larger than the sum of its proper divisors (14462895485723).

31302020010213 is a wasteful number, since it uses less digits than its factorization.

31302020010213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127255185 (or 127255182 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 31302020010213 its reverse (31201002020313), we get a palindrome (62503022030526).

The spelling of 31302020010213 in words is "thirty-one trillion, three hundred two billion, twenty million, ten thousand, two hundred thirteen".