1142464511421 has 24 divisors (see below), whose sum is σ = 1711664491264. Its totient is φ = 761501269440.

The previous prime is 1142464511407. The next prime is 1142464511423. The reversal of 1142464511421 is 1241154642411.

1142464511421 is a `hidden beast` number, since 1 + 1 + 4 + 2 + 4 + 645 + 1 + 1 + 4 + 2 + 1 = 666.

It is not a de Polignac number, because 1142464511421 - 2⁵ = 1142464511389 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 (1142464511423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 879141 + ... + 1748661.

Almost surely, 2^{1142464511421} is an apocalyptic number.

It is an amenable number.

1142464511421 is a deficient number, since it is larger than the sum of its proper divisors (569199979843).

1142464511421 is an frugal number, since it uses more digits than its factorization.

1142464511421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874943 (or 874931 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The spelling of 1142464511421 in words is "one trillion, one hundred forty-two billion, four hundred sixty-four million, five hundred eleven thousand, four hundred twenty-one".