31302112202873 has 2 divisors, whose sum is σ = 31302112202874. Its totient is φ = 31302112202872.

The previous prime is 31302112202843. The next prime is 31302112202909. The reversal of 31302112202873 is 37820221120313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29955184835689 + 1346927367184 = 5473133^2 + 1160572^2 .

It is a cyclic number.

It is not a de Polignac number, because 31302112202873 - 2³⁸ = 31027234295929 is a prime.

It is a super-2 number, since 2×31302112202873² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31302112202843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15651056101436 + 15651056101437.

It is an arithmetic number, because the mean of its divisors is an integer number (15651056101437).

Almost surely, 2^{31302112202873} is an apocalyptic number.

It is an amenable number.

31302112202873 is a deficient number, since it is larger than the sum of its proper divisors (1).

31302112202873 is an equidigital number, since it uses as much as digits as its factorization.

31302112202873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 35.

The spelling of 31302112202873 in words is "thirty-one trillion, three hundred two billion, one hundred twelve million, two hundred two thousand, eight hundred seventy-three".