120023042555 has 16 divisors (see below), whose sum is σ = 159298777344. Its totient is φ = 86236928640.

The previous prime is 120023042549. The next prime is 120023042561. The reversal of 120023042555 is 555240320021.

It is an interprime number because it is at equal distance from previous prime (120023042549) and next prime (120023042561).

It is not a de Polignac number, because 120023042555 - 2⁸ = 120023042299 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24950411 + ... + 24955220.

It is an arithmetic number, because the mean of its divisors is an integer number (9956173584).

Almost surely, 2^120023042555 is an apocalyptic number.

120023042555 is a deficient number, since it is larger than the sum of its proper divisors (39275734789).

120023042555 is a wasteful number, since it uses less digits than its factorization.

120023042555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49905686.

The product of its (nonzero) digits is 12000, while the sum is 29.

Adding to 120023042555 its reverse (555240320021), we get a palindrome (675263362576).

The spelling of 120023042555 in words is "one hundred twenty billion, twenty-three million, forty-two thousand, five hundred fifty-five".