142321356155503 has 32 divisors (see below), whose sum is σ = 165696019776000. Its totient is φ = 119714652984960.

The previous prime is 142321356155501. The next prime is 142321356155507. The reversal of 142321356155503 is 305551653123241.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 142321356155503 - 2¹ = 142321356155501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142321356155501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2666115873 + ... + 2666169253.

It is an arithmetic number, because the mean of its divisors is an integer number (5178000618000).

Almost surely, 2^{142321356155503} is an apocalyptic number.

142321356155503 is a deficient number, since it is larger than the sum of its proper divisors (23374663620497).

142321356155503 is a wasteful number, since it uses less digits than its factorization.

142321356155503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64495.

The product of its (nonzero) digits is 1620000, while the sum is 46.

The spelling of 142321356155503 in words is "one hundred forty-two trillion, three hundred twenty-one billion, three hundred fifty-six million, one hundred fifty-five thousand, five hundred three".