1131317100517 has 2 divisors, whose sum is σ = 1131317100518. Its totient is φ = 1131317100516.

The previous prime is 1131317100509. The next prime is 1131317100547. The reversal of 1131317100517 is 7150017131311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1128621517956 + 2695582561 = 1062366^2 + 51919^2 .

It is a cyclic number.

It is not a de Polignac number, because 1131317100517 - 2³ = 1131317100509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131317100547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565658550258 + 565658550259.

It is an arithmetic number, because the mean of its divisors is an integer number (565658550259).

Almost surely, 2^{1131317100517} is an apocalyptic number.

It is an amenable number.

1131317100517 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131317100517 is an equidigital number, since it uses as much as digits as its factorization.

1131317100517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2205, while the sum is 31.

The spelling of 1131317100517 in words is "one trillion, one hundred thirty-one billion, three hundred seventeen million, one hundred thousand, five hundred seventeen".