120406252331 has 4 divisors (see below), whose sum is σ = 120407148072. Its totient is φ = 120405356592.

The previous prime is 120406252319. The next prime is 120406252381. The reversal of 120406252331 is 133252604021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120406252331 is a prime.

It is a super-2 number, since 2×120406252331² (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 = 120406252294 and 120406252303.

It is not an unprimeable number, because it can be changed into a prime (120406252381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200810 + ... + 530223.

It is an arithmetic number, because the mean of its divisors is an integer number (30101787018).

Almost surely, 2^120406252331 is an apocalyptic number.

120406252331 is a deficient number, since it is larger than the sum of its proper divisors (895741).

120406252331 is an equidigital number, since it uses as much as digits as its factorization.

120406252331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895740.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 120406252331 its reverse (133252604021), we get a palindrome (253658856352).

The spelling of 120406252331 in words is "one hundred twenty billion, four hundred six million, two hundred fifty-two thousand, three hundred thirty-one".