142321011510557 has 8 divisors (see below), whose sum is σ = 155260590328800. Its totient is φ = 129381650199760.

The previous prime is 142321011510499. The next prime is 142321011510589. The reversal of 142321011510557 is 755015110123241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142321011510557 - 2¹⁰ = 142321011509533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142321011510557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142321011510757) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53007218 + ... + 55627395.

It is an arithmetic number, because the mean of its divisors is an integer number (19407573791100).

Almost surely, 2^{142321011510557} is an apocalyptic number.

It is an amenable number.

142321011510557 is a deficient number, since it is larger than the sum of its proper divisors (12939578818243).

142321011510557 is a wasteful number, since it uses less digits than its factorization.

142321011510557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108753723.

The product of its (nonzero) digits is 42000, while the sum is 38.

Adding to 142321011510557 its reverse (755015110123241), we get a palindrome (897336121633798).

The spelling of 142321011510557 in words is "one hundred forty-two trillion, three hundred twenty-one billion, eleven million, five hundred ten thousand, five hundred fifty-seven".