120531601 has 4 divisors (see below), whose sum is σ = 120559104. Its totient is φ = 120504100.

The previous prime is 120531589. The next prime is 120531617. The reversal of 120531601 is 106135021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 106135021 = 131 ⋅810191.

It is a cyclic number.

It is not a de Polignac number, because 120531601 - 2¹¹ = 120529553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120538601) 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, 5545 + ... + 16486.

It is an arithmetic number, because the mean of its divisors is an integer number (30139776).

Almost surely, 2^120531601 is an apocalyptic number.

It is an amenable number.

120531601 is a deficient number, since it is larger than the sum of its proper divisors (27503).

120531601 is an equidigital number, since it uses as much as digits as its factorization.

120531601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27502.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 120531601 is about 10978.6884918008. The cubic root of 120531601 is about 493.9696979670.

Adding to 120531601 its reverse (106135021), we get a palindrome (226666622).

The spelling of 120531601 in words is "one hundred twenty million, five hundred thirty-one thousand, six hundred one".