142311550351521 has 16 divisors (see below), whose sum is σ = 192144410127936. Its totient is φ = 93677832869376.

The previous prime is 142311550351511. The next prime is 142311550351583. The reversal of 142311550351521 is 125153055113241.

It is not a de Polignac number, because 142311550351521 - 2¹³ = 142311550343329 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142311550351521.

It is not an unprimeable number, because it can be changed into a prime (142311550351511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162579000 + ... + 163451993.

It is an arithmetic number, because the mean of its divisors is an integer number (12009025632996).

Almost surely, 2^{142311550351521} is an apocalyptic number.

It is an amenable number.

142311550351521 is a deficient number, since it is larger than the sum of its proper divisors (49832859776415).

142311550351521 is a wasteful number, since it uses less digits than its factorization.

142311550351521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326032832.

The product of its (nonzero) digits is 90000, while the sum is 39.

The spelling of 142311550351521 in words is "one hundred forty-two trillion, three hundred eleven billion, five hundred fifty million, three hundred fifty-one thousand, five hundred twenty-one".