120124531 has 4 divisors (see below), whose sum is σ = 122160600. Its totient is φ = 118088464.

The previous prime is 120124523. The next prime is 120124549. The reversal of 120124531 is 135421021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 135421021 = 97 ⋅1396093.

It is a cyclic number.

It is not a de Polignac number, because 120124531 - 2³ = 120124523 is a prime.

It is a super-2 number, since 2×120124531² = 28859805895939922, 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 = 120124499 and 120124508.

It is not an unprimeable number, because it can be changed into a prime (120124591) 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, 1017946 + ... + 1018063.

It is an arithmetic number, because the mean of its divisors is an integer number (30540150).

Almost surely, 2^120124531 is an apocalyptic number.

120124531 is a deficient number, since it is larger than the sum of its proper divisors (2036069).

120124531 is an equidigital number, since it uses as much as digits as its factorization.

120124531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2036068.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 120124531 is about 10960.1337126880. The cubic root of 120124531 is about 493.4129780207.

Adding to 120124531 its reverse (135421021), we get a palindrome (255545552).

The spelling of 120124531 in words is "one hundred twenty million, one hundred twenty-four thousand, five hundred thirty-one".