142321163442541 has 4 divisors (see below), whose sum is σ = 142420758379900. Its totient is φ = 142221568505184.

The previous prime is 142321163442439. The next prime is 142321163442569. The reversal of 142321163442541 is 145244361123241.

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 75804970626025 + 66516192816516 = 8706605^2 + 8155746^2 .

It is a cyclic number.

It is not a de Polignac number, because 142321163442541 - 2²³ = 142321155053933 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 (142321163442641) 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, 49797466536 + ... + 49797469393.

It is an arithmetic number, because the mean of its divisors is an integer number (35605189594975).

Almost surely, 2^{142321163442541} is an apocalyptic number.

It is an amenable number.

142321163442541 is a deficient number, since it is larger than the sum of its proper divisors (99594937359).

142321163442541 is an equidigital number, since it uses as much as digits as its factorization.

142321163442541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99594937358.

The product of its digits is 552960, while the sum is 43.

The spelling of 142321163442541 in words is "one hundred forty-two trillion, three hundred twenty-one billion, one hundred sixty-three million, four hundred forty-two thousand, five hundred forty-one".