120431345 has 8 divisors (see below), whose sum is σ = 149501160. Its totient is φ = 93022720.

The previous prime is 120431327. The next prime is 120431351. The reversal of 120431345 is 543134021.

It can be written as a sum of positive squares in 4 ways, for example, as 506944 + 119924401 = 712^2 + 10951^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120431345 - 2¹⁸ = 120169201 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 120431345.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 415136 + ... + 415425.

It is an arithmetic number, because the mean of its divisors is an integer number (18687645).

Almost surely, 2^120431345 is an apocalyptic number.

It is an amenable number.

120431345 is a deficient number, since it is larger than the sum of its proper divisors (29069815).

120431345 is an equidigital number, since it uses as much as digits as its factorization.

120431345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830595.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 120431345 is about 10974.1216049395. The cubic root of 120431345 is about 493.8327016306.

Adding to 120431345 its reverse (543134021), we get a palindrome (663565366).

The spelling of 120431345 in words is "one hundred twenty million, four hundred thirty-one thousand, three hundred forty-five".