120011400555 has 16 divisors (see below), whose sum is σ = 192142240800. Its totient is φ = 63964747008.

The previous prime is 120011400541. The next prime is 120011400559. The reversal of 120011400555 is 555004110021.

It is not a de Polignac number, because 120011400555 - 2⁹ = 120011400043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120011400559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2559322 + ... + 2605791.

It is an arithmetic number, because the mean of its divisors is an integer number (12008890050).

Almost surely, 2^120011400555 is an apocalyptic number.

120011400555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

120011400555 is a deficient number, since it is larger than the sum of its proper divisors (72130840245).

120011400555 is a wasteful number, since it uses less digits than its factorization.

120011400555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5166670.

The product of its (nonzero) digits is 1000, while the sum is 24.

Adding to 120011400555 its reverse (555004110021), we get a palindrome (675015510576).

The spelling of 120011400555 in words is "one hundred twenty billion, eleven million, four hundred thousand, five hundred fifty-five".