120400423331 has 16 divisors (see below), whose sum is σ = 131589124128. Its totient is φ = 109710182400.

The previous prime is 120400423321. The next prime is 120400423333. The reversal of 120400423331 is 133324004021.

It is a cyclic number.

It is not a de Polignac number, because 120400423331 - 2¹⁴ = 120400406947 is a prime.

It is a super-2 number, since 2×120400423331² (a number of 23 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 = 120400423297 and 120400423306.

It is not an unprimeable number, because it can be changed into a prime (120400423333) 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, 568010 + ... + 750623.

It is an arithmetic number, because the mean of its divisors is an integer number (8224320258).

Almost surely, 2^120400423331 is an apocalyptic number.

120400423331 is a deficient number, since it is larger than the sum of its proper divisors (11188700797).

120400423331 is a wasteful number, since it uses less digits than its factorization.

120400423331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318822.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 120400423331 its reverse (133324004021), we get a palindrome (253724427352).

The spelling of 120400423331 in words is "one hundred twenty billion, four hundred million, four hundred twenty-three thousand, three hundred thirty-one".