120421311423 has 16 divisors (see below), whose sum is σ = 189418469376. Its totient is φ = 66592429920.

The previous prime is 120421311397. The next prime is 120421311533. The reversal of 120421311423 is 324113124021.

It is not a de Polignac number, because 120421311423 - 2⁵ = 120421311391 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120421311393 and 120421311402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120421311823) 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, 92488836 + ... + 92490137.

It is an arithmetic number, because the mean of its divisors is an integer number (11838654336).

Almost surely, 2^120421311423 is an apocalyptic number.

120421311423 is a deficient number, since it is larger than the sum of its proper divisors (68997157953).

120421311423 is a wasteful number, since it uses less digits than its factorization.

120421311423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184979014.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 120421311423 its reverse (324113124021), we get a palindrome (444534435444).

The spelling of 120421311423 in words is "one hundred twenty billion, four hundred twenty-one million, three hundred eleven thousand, four hundred twenty-three".