31004040212177 has 2 divisors, whose sum is σ = 31004040212178. Its totient is φ = 31004040212176.

The previous prime is 31004040212161. The next prime is 31004040212203. The reversal of 31004040212177 is 77121204040013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21013642756096 + 9990397456081 = 4584064^2 + 3160759^2 .

It is a cyclic number.

It is not a de Polignac number, because 31004040212177 - 2⁴ = 31004040212161 is a prime.

It is a super-2 number, since 2×31004040212177² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31004040212107) 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 as a sum of consecutive naturals, namely, 15502020106088 + 15502020106089.

It is an arithmetic number, because the mean of its divisors is an integer number (15502020106089).

Almost surely, 2^{31004040212177} is an apocalyptic number.

It is an amenable number.

31004040212177 is a deficient number, since it is larger than the sum of its proper divisors (1).

31004040212177 is an equidigital number, since it uses as much as digits as its factorization.

31004040212177 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9408, while the sum is 32.

The spelling of 31004040212177 in words is "thirty-one trillion, four billion, forty million, two hundred twelve thousand, one hundred seventy-seven".