120420250401 has 24 divisors (see below), whose sum is σ = 176658431040. Its totient is φ = 72909701920.

The previous prime is 120420250399. The next prime is 120420250409. The reversal of 120420250401 is 104052024021.

It is not a de Polignac number, because 120420250401 - 2¹ = 120420250399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120420250409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 203980 + ... + 531458.

It is an arithmetic number, because the mean of its divisors is an integer number (7360767960).

Almost surely, 2^120420250401 is an apocalyptic number.

120420250401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120420250401 is a deficient number, since it is larger than the sum of its proper divisors (56238180639).

120420250401 is a wasteful number, since it uses less digits than its factorization.

120420250401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328517 (or 328506 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

Adding to 120420250401 its reverse (104052024021), we get a palindrome (224472274422).

The spelling of 120420250401 in words is "one hundred twenty billion, four hundred twenty million, two hundred fifty thousand, four hundred one".