142021052043001 has 4 divisors (see below), whose sum is σ = 145859458855012. Its totient is φ = 138182645230992.

The previous prime is 142021052042959. The next prime is 142021052043007. The reversal of 142021052043001 is 100340250120241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 67443595884025 + 74577456158976 = 8212405^2 + 8635824^2 .

It is a cyclic number.

It is not a de Polignac number, because 142021052043001 - 2¹³ = 142021052034809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142021052043007) 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, 1919203405950 + ... + 1919203406023.

It is an arithmetic number, because the mean of its divisors is an integer number (36464864713753).

Almost surely, 2^{142021052043001} is an apocalyptic number.

It is an amenable number.

142021052043001 is a deficient number, since it is larger than the sum of its proper divisors (3838406812011).

142021052043001 is an equidigital number, since it uses as much as digits as its factorization.

142021052043001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3838406812010.

The product of its (nonzero) digits is 1920, while the sum is 25.

The spelling of 142021052043001 in words is "one hundred forty-two trillion, twenty-one billion, fifty-two million, forty-three thousand, one".