31301123122097 has 4 divisors (see below), whose sum is σ = 31301156623716. Its totient is φ = 31301089620480.

The previous prime is 31301123122063. The next prime is 31301123122121. The reversal of 31301123122097 is 79022132110313.

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 21631019639056 + 9670103483041 = 4650916^2 + 3109679^2 .

It is a cyclic number.

It is not a de Polignac number, because 31301123122097 - 2¹⁸ = 31301122859953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31301123122057) 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, 15307904 + ... + 17231777.

It is an arithmetic number, because the mean of its divisors is an integer number (7825289155929).

Almost surely, 2^{31301123122097} is an apocalyptic number.

It is an amenable number.

31301123122097 is a deficient number, since it is larger than the sum of its proper divisors (33501619).

31301123122097 is an equidigital number, since it uses as much as digits as its factorization.

31301123122097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33501618.

The product of its (nonzero) digits is 13608, while the sum is 35.

The spelling of 31301123122097 in words is "thirty-one trillion, three hundred one billion, one hundred twenty-three million, one hundred twenty-two thousand, ninety-seven".