120140231 has 4 divisors (see below), whose sum is σ = 121057464. Its totient is φ = 119223000.

The previous prime is 120140219. The next prime is 120140239. The reversal of 120140231 is 132041021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120140231 - 2¹⁰ = 120139207 is a prime.

It is a super-2 number, since 2×120140231² = 28867350209466722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120140239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 458420 + ... + 458681.

It is an arithmetic number, because the mean of its divisors is an integer number (30264366).

Almost surely, 2^120140231 is an apocalyptic number.

120140231 is a deficient number, since it is larger than the sum of its proper divisors (917233).

120140231 is an equidigital number, since it uses as much as digits as its factorization.

120140231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917232.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 120140231 is about 10960.8499214249. The cubic root of 120140231 is about 493.4344730649.

Adding to 120140231 its reverse (132041021), we get a palindrome (252181252).

The spelling of 120140231 in words is "one hundred twenty million, one hundred forty thousand, two hundred thirty-one".