120430531 has 16 divisors (see below), whose sum is σ = 138775840. Its totient is φ = 103576320.

The previous prime is 120430529. The next prime is 120430549. The reversal of 120430531 is 135034021.

It is a cyclic number.

It is not a de Polignac number, because 120430531 - 2¹ = 120430529 is a prime.

It is a super-2 number, since 2×120430531² = 29007025593883922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120430499 and 120430508.

It is not an unprimeable number, because it can be changed into a prime (120430501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11071 + ... + 19063.

It is an arithmetic number, because the mean of its divisors is an integer number (8673490).

Almost surely, 2^120430531 is an apocalyptic number.

120430531 is a deficient number, since it is larger than the sum of its proper divisors (18345309).

120430531 is a wasteful number, since it uses less digits than its factorization.

120430531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8086.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 120430531 is about 10974.0845176261. The cubic root of 120430531 is about 493.8315890168.

Adding to 120430531 its reverse (135034021), we get a palindrome (255464552).

The spelling of 120430531 in words is "one hundred twenty million, four hundred thirty thousand, five hundred thirty-one".