15240341131381 has 2 divisors, whose sum is σ = 15240341131382. Its totient is φ = 15240341131380.

The previous prime is 15240341131369. The next prime is 15240341131397. The reversal of 15240341131381 is 18313114304251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15202466133156 + 37874998225 = 3899034^2 + 194615^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15240341131381 is a prime.

It is a super-2 number, since 2×15240341131381² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 15240341131381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15240341131321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7620170565690 + 7620170565691.

It is an arithmetic number, because the mean of its divisors is an integer number (7620170565691).

Almost surely, 2^{15240341131381} is an apocalyptic number.

It is an amenable number.

15240341131381 is a deficient number, since it is larger than the sum of its proper divisors (1).

15240341131381 is an equidigital number, since it uses as much as digits as its factorization.

15240341131381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 15240341131381 in words is "fifteen trillion, two hundred forty billion, three hundred forty-one million, one hundred thirty-one thousand, three hundred eighty-one".