120143402455 has 4 divisors (see below), whose sum is σ = 144172082952. Its totient is φ = 96114721960.

The previous prime is 120143402447. The next prime is 120143402471. The reversal of 120143402455 is 554204341021.

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

It is not a de Polignac number, because 120143402455 - 2³ = 120143402447 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 12014340241 + ... + 12014340250.

It is an arithmetic number, because the mean of its divisors is an integer number (36043020738).

Almost surely, 2^120143402455 is an apocalyptic number.

120143402455 is a deficient number, since it is larger than the sum of its proper divisors (24028680497).

120143402455 is an equidigital number, since it uses as much as digits as its factorization.

120143402455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24028680496.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 120143402455 its reverse (554204341021), we get a palindrome (674347743476).

The spelling of 120143402455 in words is "one hundred twenty billion, one hundred forty-three million, four hundred two thousand, four hundred fifty-five".