120131563 has 4 divisors (see below), whose sum is σ = 123378400. Its totient is φ = 116884728.

The previous prime is 120131527. The next prime is 120131567. The reversal of 120131563 is 365131021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120131563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120131567) 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, 1623363 + ... + 1623436.

It is an arithmetic number, because the mean of its divisors is an integer number (30844600).

Almost surely, 2^120131563 is an apocalyptic number.

120131563 is a deficient number, since it is larger than the sum of its proper divisors (3246837).

120131563 is an equidigital number, since it uses as much as digits as its factorization.

120131563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3246836.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 120131563 is about 10960.4545069992. The cubic root of 120131563 is about 493.4226058415.

Adding to 120131563 its reverse (365131021), we get a palindrome (485262584).

The spelling of 120131563 in words is "one hundred twenty million, one hundred thirty-one thousand, five hundred sixty-three".