120440430231 has 16 divisors (see below), whose sum is σ = 179920841088. Its totient is φ = 71021383200.

The previous prime is 120440430223. The next prime is 120440430287. The reversal of 120440430231 is 132034044021.

It is not a de Polignac number, because 120440430231 - 2³ = 120440430223 is a prime.

It is a super-2 number, since 2×120440430231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120440410231) 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, 49319185 + ... + 49321626.

It is an arithmetic number, because the mean of its divisors is an integer number (11245052568).

Almost surely, 2^120440430231 is an apocalyptic number.

120440430231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

120440430231 is a deficient number, since it is larger than the sum of its proper divisors (59480410857).

120440430231 is a wasteful number, since it uses less digits than its factorization.

120440430231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98640862.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 120440430231 its reverse (132034044021), we get a palindrome (252474474252).

The spelling of 120440430231 in words is "one hundred twenty billion, four hundred forty million, four hundred thirty thousand, two hundred thirty-one".