120801128 has 16 divisors (see below), whose sum is σ = 258859680. Its totient is φ = 51771888.

The previous prime is 120801113. The next prime is 120801137. The reversal of 120801128 is 821108021.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1078526 + ... + 1078637.

It is an arithmetic number, because the mean of its divisors is an integer number (16178730).

Almost surely, 2^120801128 is an apocalyptic number.

It is an amenable number.

120801128 is an abundant number, since it is smaller than the sum of its proper divisors (138058552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120801128 is a wasteful number, since it uses less digits than its factorization.

120801128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2157176 (or 2157172 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 23.

The square root of 120801128 is about 10990.9566462615. The cubic root of 120801128 is about 494.3376209950.

Adding to 120801128 its reverse (821108021), we get a palindrome (941909149).

The spelling of 120801128 in words is "one hundred twenty million, eight hundred one thousand, one hundred twenty-eight".