120431043321 has 16 divisors (see below), whose sum is σ = 161556804288. Its totient is φ = 79797166400.

The previous prime is 120431043307. The next prime is 120431043329. The reversal of 120431043321 is 123340134021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 120431043321 - 2¹¹ = 120431041273 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 120431043291 and 120431043300.

It is not an unprimeable number, because it can be changed into a prime (120431043329) 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, 468931 + ... + 678791.

It is an arithmetic number, because the mean of its divisors is an integer number (10097300268).

Almost surely, 2^120431043321 is an apocalyptic number.

It is an amenable number.

120431043321 is a deficient number, since it is larger than the sum of its proper divisors (41125760967).

120431043321 is a wasteful number, since it uses less digits than its factorization.

120431043321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211032.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 120431043321 its reverse (123340134021), we get a palindrome (243771177342).

The spelling of 120431043321 in words is "one hundred twenty billion, four hundred thirty-one million, forty-three thousand, three hundred twenty-one".