142377043221 has 48 divisors (see below), whose sum is σ = 251998472320. Its totient is φ = 77820937920.

The previous prime is 142377043219. The next prime is 142377043253. The reversal of 142377043221 is 122340773241.

142377043221 is a `hidden beast` number, since 1 + 423 + 7 + 7 + 0 + 4 + 3 + 221 = 666.

It is not a de Polignac number, because 142377043221 - 2¹ = 142377043219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142377043261) 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, 612040 + ... + 812001.

Almost surely, 2^142377043221 is an apocalyptic number.

It is an amenable number.

142377043221 is a deficient number, since it is larger than the sum of its proper divisors (109621429099).

142377043221 is a wasteful number, since it uses less digits than its factorization.

142377043221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424103 (or 1424074 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 36.

The spelling of 142377043221 in words is "one hundred forty-two billion, three hundred seventy-seven million, forty-three thousand, two hundred twenty-one".