120100513551 has 32 divisors (see below), whose sum is σ = 166530124800. Its totient is φ = 76898828160.

The previous prime is 120100513549. The next prime is 120100513567. The reversal of 120100513551 is 155315001021.

It is not a de Polignac number, because 120100513551 - 2¹ = 120100513549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120100513531) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23223196 + ... + 23228366.

It is an arithmetic number, because the mean of its divisors is an integer number (5204066400).

Almost surely, 2^120100513551 is an apocalyptic number.

120100513551 is a deficient number, since it is larger than the sum of its proper divisors (46429611249).

120100513551 is a wasteful number, since it uses less digits than its factorization.

120100513551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6559.

The product of its (nonzero) digits is 750, while the sum is 24.

Adding to 120100513551 its reverse (155315001021), we get a palindrome (275415514572).

The spelling of 120100513551 in words is "one hundred twenty billion, one hundred million, five hundred thirteen thousand, five hundred fifty-one".