120400633 has 4 divisors (see below), whose sum is σ = 120528720. Its totient is φ = 120272548.

The previous prime is 120400619. The next prime is 120400639. The reversal of 120400633 is 336004021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120400633 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120400633.

It is not an unprimeable number, because it can be changed into a prime (120400639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62623 + ... + 64516.

It is an arithmetic number, because the mean of its divisors is an integer number (30132180).

Almost surely, 2^120400633 is an apocalyptic number.

It is an amenable number.

120400633 is a deficient number, since it is larger than the sum of its proper divisors (128087).

120400633 is an equidigital number, since it uses as much as digits as its factorization.

120400633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128086.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 120400633 is about 10972.7222237693. The cubic root of 120400633 is about 493.7907195387.

Adding to 120400633 its reverse (336004021), we get a palindrome (456404654).

The spelling of 120400633 in words is "one hundred twenty million, four hundred thousand, six hundred thirty-three".