120235631 has 2 divisors, whose sum is σ = 120235632. Its totient is φ = 120235630.

The previous prime is 120235613. The next prime is 120235637. The reversal of 120235631 is 136532021.

Together with previous prime (120235613) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120235631 - 2⁶ = 120235567 is a prime.

It is a super-2 number, since 2×120235631² = 28913213923936322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 120235597 and 120235606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120235637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60117815 + 60117816.

It is an arithmetic number, because the mean of its divisors is an integer number (60117816).

Almost surely, 2^120235631 is an apocalyptic number.

120235631 is a deficient number, since it is larger than the sum of its proper divisors (1).

120235631 is an equidigital number, since it uses as much as digits as its factorization.

120235631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 120235631 is about 10965.2009101521. The cubic root of 120235631 is about 493.5650460180.

Adding to 120235631 its reverse (136532021), we get a palindrome (256767652).

The spelling of 120235631 in words is "one hundred twenty million, two hundred thirty-five thousand, six hundred thirty-one".