120513022551 has 12 divisors (see below), whose sum is σ = 174196370712. Its totient is φ = 80285705136.

The previous prime is 120513022549. The next prime is 120513022573. The reversal of 120513022551 is 155220315021.

120513022551 is a `hidden beast` number, since 12 + 0 + 51 + 30 + 22 + 551 = 666.

It is not a de Polignac number, because 120513022551 - 2¹ = 120513022549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120513022051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4678936 + ... + 4704621.

It is an arithmetic number, because the mean of its divisors is an integer number (14516364226).

Almost surely, 2^120513022551 is an apocalyptic number.

120513022551 is a deficient number, since it is larger than the sum of its proper divisors (53683348161).

120513022551 is a wasteful number, since it uses less digits than its factorization.

120513022551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9384990 (or 9384987 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

Adding to 120513022551 its reverse (155220315021), we get a palindrome (275733337572).

The spelling of 120513022551 in words is "one hundred twenty billion, five hundred thirteen million, twenty-two thousand, five hundred fifty-one".