120400011143042 has 4 divisors (see below), whose sum is σ = 180600016714566. Its totient is φ = 60200005571520.

The previous prime is 120400011142997. The next prime is 120400011143057. The reversal of 120400011143042 is 240341110004021.

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

It can be written as a sum of positive squares in only one way, i.e., 88251576081361 + 32148435061681 = 9394231^2 + 5669959^2 .

It is a junction number, because it is equal to n+sod(n) for n = 120400011142999 and 120400011143017.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 30100002785759 + ... + 30100002785762.

Almost surely, 2^{120400011143042} is an apocalyptic number.

120400011143042 is a deficient number, since it is larger than the sum of its proper divisors (60200005571524).

120400011143042 is an equidigital number, since it uses as much as digits as its factorization.

120400011143042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60200005571523.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 120400011143042 its reverse (240341110004021), we get a palindrome (360741121147063).

The spelling of 120400011143042 in words is "one hundred twenty trillion, four hundred billion, eleven million, one hundred forty-three thousand, forty-two".