120421023444431 has 8 divisors (see below), whose sum is σ = 128721518168544. Its totient is φ = 112375928558080.

The previous prime is 120421023444347. The next prime is 120421023444467. The reversal of 120421023444431 is 134444320124021.

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

It is a cyclic number.

It is not a de Polignac number, because 120421023444431 - 2¹⁰ = 120421023443407 is a prime.

It is a super-2 number, since 2×120421023444431² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120421023444391 and 120421023444400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120421023444481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63849958466 + ... + 63849960351.

It is an arithmetic number, because the mean of its divisors is an integer number (16090189771068).

Almost surely, 2^{120421023444431} is an apocalyptic number.

120421023444431 is a deficient number, since it is larger than the sum of its proper divisors (8300494724113).

120421023444431 is a wasteful number, since it uses less digits than its factorization.

120421023444431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127699918881.

The product of its (nonzero) digits is 73728, while the sum is 35.

Adding to 120421023444431 its reverse (134444320124021), we get a palindrome (254865343568452).

The spelling of 120421023444431 in words is "one hundred twenty trillion, four hundred twenty-one billion, twenty-three million, four hundred forty-four thousand, four hundred thirty-one".