1113697683521 has 2 divisors, whose sum is σ = 1113697683522. Its totient is φ = 1113697683520.

The previous prime is 1113697683517. The next prime is 1113697683533. The reversal of 1113697683521 is 1253867963111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 852076686400 + 261620997121 = 923080^2 + 511489^2 .

It is a cyclic number.

It is not a de Polignac number, because 1113697683521 - 2² = 1113697683517 is a prime.

It is not a weakly prime, because it can be changed into another prime (1113697683551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556848841760 + 556848841761.

It is an arithmetic number, because the mean of its divisors is an integer number (556848841761).

Almost surely, 2^{1113697683521} is an apocalyptic number.

It is an amenable number.

1113697683521 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113697683521 is an equidigital number, since it uses as much as digits as its factorization.

1113697683521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 53.

The spelling of 1113697683521 in words is "one trillion, one hundred thirteen billion, six hundred ninety-seven million, six hundred eighty-three thousand, five hundred twenty-one".