1042677321021 has 48 divisors (see below), whose sum is σ = 1777013874688. Its totient is φ = 576516333600.

The previous prime is 1042677321019. The next prime is 1042677321031. The reversal of 1042677321021 is 1201237762401.

1042677321021 is a `hidden beast` number, since 10 + 426 + 7 + 7 + 3 + 210 + 2 + 1 = 666.

It is not a de Polignac number, because 1042677321021 - 2¹ = 1042677321019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042677321031) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15917466 + ... + 15982836.

Almost surely, 2^{1042677321021} is an apocalyptic number.

It is an amenable number.

1042677321021 is a deficient number, since it is larger than the sum of its proper divisors (734336553667).

1042677321021 is a wasteful number, since it uses less digits than its factorization.

1042677321021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73582 (or 73579 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The spelling of 1042677321021 in words is "one trillion, forty-two billion, six hundred seventy-seven million, three hundred twenty-one thousand, twenty-one".