120456735321 has 16 divisors (see below), whose sum is σ = 183137842944. Its totient is φ = 69766796544.

The previous prime is 120456735293. The next prime is 120456735359. The reversal of 120456735321 is 123537654021.

It is not a de Polignac number, because 120456735321 - 2⁹ = 120456734809 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 120456735321.

It is not an unprimeable number, because it can be changed into a prime (120454735321) 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, 90841521 + ... + 90842846.

It is an arithmetic number, because the mean of its divisors is an integer number (11446115184).

Almost surely, 2^120456735321 is an apocalyptic number.

It is an amenable number.

120456735321 is a deficient number, since it is larger than the sum of its proper divisors (62681107623).

120456735321 is a wasteful number, since it uses less digits than its factorization.

120456735321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181684400.

The product of its (nonzero) digits is 151200, while the sum is 39.

The spelling of 120456735321 in words is "one hundred twenty billion, four hundred fifty-six million, seven hundred thirty-five thousand, three hundred twenty-one".