31301123122147 has 2 divisors, whose sum is σ = 31301123122148. Its totient is φ = 31301123122146.

The previous prime is 31301123122127. The next prime is 31301123122153. The reversal of 31301123122147 is 74122132110313.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31301123122147 is a prime.

It is not a weakly prime, because it can be changed into another prime (31301123122127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15650561561073 + 15650561561074.

It is an arithmetic number, because the mean of its divisors is an integer number (15650561561074).

Almost surely, 2^{31301123122147} is an apocalyptic number.

31301123122147 is a deficient number, since it is larger than the sum of its proper divisors (1).

31301123122147 is an equidigital number, since it uses as much as digits as its factorization.

31301123122147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 31.

The spelling of 31301123122147 in words is "thirty-one trillion, three hundred one billion, one hundred twenty-three million, one hundred twenty-two thousand, one hundred forty-seven".