31211301100093 has 2 divisors, whose sum is σ = 31211301100094. Its totient is φ = 31211301100092.

The previous prime is 31211301100009. The next prime is 31211301100127. The reversal of 31211301100093 is 39000110311213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31033333553049 + 177967547044 = 5570757^2 + 421862^2 .

It is a cyclic number.

It is not a de Polignac number, because 31211301100093 - 2²¹ = 31211299002941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31211301100193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15605650550046 + 15605650550047.

It is an arithmetic number, because the mean of its divisors is an integer number (15605650550047).

Almost surely, 2^{31211301100093} is an apocalyptic number.

It is an amenable number.

31211301100093 is a deficient number, since it is larger than the sum of its proper divisors (1).

31211301100093 is an equidigital number, since it uses as much as digits as its factorization.

31211301100093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 25.

The spelling of 31211301100093 in words is "thirty-one trillion, two hundred eleven billion, three hundred one million, one hundred thousand, ninety-three".