1248332053681 has 4 divisors (see below), whose sum is σ = 1248339391600. Its totient is φ = 1248324715764.

The previous prime is 1248332053669. The next prime is 1248332053687. The reversal of 1248332053681 is 1863502338421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1248332053681 - 2²¹ = 1248329956529 is a prime.

It is a super-2 number, since 2×1248332053681² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1248332053687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3407571 + ... + 3756088.

It is an arithmetic number, because the mean of its divisors is an integer number (312084847900).

Almost surely, 2^{1248332053681} is an apocalyptic number.

It is an amenable number.

1248332053681 is a deficient number, since it is larger than the sum of its proper divisors (7337919).

1248332053681 is an equidigital number, since it uses as much as digits as its factorization.

1248332053681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7337918.

The product of its (nonzero) digits is 829440, while the sum is 46.

The spelling of 1248332053681 in words is "one trillion, two hundred forty-eight billion, three hundred thirty-two million, fifty-three thousand, six hundred eighty-one".