120531123 has 12 divisors (see below), whose sum is σ = 175014528. Its totient is φ = 79932240.

The previous prime is 120531097. The next prime is 120531127. The reversal of 120531123 is 321135021.

120531123 is a `hidden beast` number, since 12 + 0 + 531 + 123 = 666.

It is not a de Polignac number, because 120531123 - 2¹⁰ = 120530099 is a prime.

It is a super-2 number, since 2×120531123² = 29055503223282258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120531096 and 120531105.

It is not an unprimeable number, because it can be changed into a prime (120531127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33340 + ... + 36777.

It is an arithmetic number, because the mean of its divisors is an integer number (14584544).

Almost surely, 2^120531123 is an apocalyptic number.

120531123 is a deficient number, since it is larger than the sum of its proper divisors (54483405).

120531123 is a wasteful number, since it uses less digits than its factorization.

120531123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70314 (or 70311 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 120531123 is about 10978.6667223302. Note that the first 3 decimals coincide. The cubic root of 120531123 is about 493.9690449769.

Adding to 120531123 its reverse (321135021), we get a palindrome (441666144).

The spelling of 120531123 in words is "one hundred twenty million, five hundred thirty-one thousand, one hundred twenty-three".