142556053661123 has 4 divisors (see below), whose sum is σ = 142713226819320. Its totient is φ = 142398880502928.

The previous prime is 142556053661107. The next prime is 142556053661173. The reversal of 142556053661123 is 321166350655241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142556053661123 - 2⁴ = 142556053661107 is a prime.

It is a super-2 number, since 2×142556053661123² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142556053661173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78586577738 + ... + 78586579551.

It is an arithmetic number, because the mean of its divisors is an integer number (35678306704830).

Almost surely, 2^{142556053661123} is an apocalyptic number.

142556053661123 is a deficient number, since it is larger than the sum of its proper divisors (157173158197).

142556053661123 is an equidigital number, since it uses as much as digits as its factorization.

142556053661123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157173158196.

The product of its (nonzero) digits is 3888000, while the sum is 50.

The spelling of 142556053661123 in words is "one hundred forty-two trillion, five hundred fifty-six billion, fifty-three million, six hundred sixty-one thousand, one hundred twenty-three".