1148357724021 has 12 divisors (see below), whose sum is σ = 1682101455840. Its totient is φ = 754789113960.

The previous prime is 1148357724011. The next prime is 1148357724023. The reversal of 1148357724021 is 1204277538411.

It is a happy number.

1148357724021 is a `hidden beast` number, since 1 + 14 + 8 + 3 + 577 + 2 + 40 + 21 = 666.

It is not a de Polignac number, because 1148357724021 - 2²⁵ = 1148324169589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1148357724023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 898557831 + ... + 898559108.

It is an arithmetic number, because the mean of its divisors is an integer number (140175121320).

Almost surely, 2^{1148357724021} is an apocalyptic number.

It is an amenable number.

1148357724021 is a deficient number, since it is larger than the sum of its proper divisors (533743731819).

1148357724021 is a wasteful number, since it uses less digits than its factorization.

1148357724021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1797117016 (or 1797117013 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The spelling of 1148357724021 in words is "one trillion, one hundred forty-eight billion, three hundred fifty-seven million, seven hundred twenty-four thousand, twenty-one".