120660431 has 4 divisors (see below), whose sum is σ = 127011000. Its totient is φ = 114309864.

The previous prime is 120660403. The next prime is 120660437. The reversal of 120660431 is 134066021.

It is a happy number.

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 120660431 - 2¹⁸ = 120398287 is a prime.

It is a super-2 number, since 2×120660431² = 29117879218211522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120660397 and 120660406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120660437) 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, 3175256 + ... + 3175293.

It is an arithmetic number, because the mean of its divisors is an integer number (31752750).

Almost surely, 2^120660431 is an apocalyptic number.

120660431 is a deficient number, since it is larger than the sum of its proper divisors (6350569).

120660431 is an equidigital number, since it uses as much as digits as its factorization.

120660431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6350568.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 120660431 is about 10984.5542012409. The cubic root of 120660431 is about 494.1456281960.

The spelling of 120660431 in words is "one hundred twenty million, six hundred sixty thousand, four hundred thirty-one".