142430021061256 has 16 divisors (see below), whose sum is σ = 273266900874000. Its totient is φ = 69558847494864.

The previous prime is 142430021061203. The next prime is 142430021061337. The reversal of 142430021061256 is 652160120034241.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207020379106 + ... + 207020379793.

It is an arithmetic number, because the mean of its divisors is an integer number (17079181304625).

Almost surely, 2^{142430021061256} is an apocalyptic number.

It is an amenable number.

142430021061256 is a deficient number, since it is larger than the sum of its proper divisors (130836879812744).

142430021061256 is a wasteful number, since it uses less digits than its factorization.

142430021061256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414040758948 (or 414040758944 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

Adding to 142430021061256 its reverse (652160120034241), we get a palindrome (794590141095497).

The spelling of 142430021061256 in words is "one hundred forty-two trillion, four hundred thirty billion, twenty-one million, sixty-one thousand, two hundred fifty-six".