31136374226701 has 2 divisors, whose sum is σ = 31136374226702. Its totient is φ = 31136374226700.

The previous prime is 31136374226603. The next prime is 31136374226767. The reversal of 31136374226701 is 10762247363113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22015793025801 + 9120581200900 = 4692099^2 + 3020030^2 .

It is an emirp because it is prime and its reverse (10762247363113) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31136374226701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31136374223701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15568187113350 + 15568187113351.

It is an arithmetic number, because the mean of its divisors is an integer number (15568187113351).

Almost surely, 2^{31136374226701} is an apocalyptic number.

It is an amenable number.

31136374226701 is a deficient number, since it is larger than the sum of its proper divisors (1).

31136374226701 is an equidigital number, since it uses as much as digits as its factorization.

31136374226701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 762048, while the sum is 46.

The spelling of 31136374226701 in words is "thirty-one trillion, one hundred thirty-six billion, three hundred seventy-four million, two hundred twenty-six thousand, seven hundred one".