1603120131 has 12 divisors (see below), whose sum is σ = 2372097000. Its totient is φ = 1042679520.

The previous prime is 1603120073. The next prime is 1603120139. The reversal of 1603120131 is 1310213061.

It is not a de Polignac number, because 1603120131 - 2¹⁰ = 1603119107 is a prime.

It is a super-2 number, since 2×1603120131² = 5139988308834914322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1603120139) 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, 2171881 + ... + 2172618.

It is an arithmetic number, because the mean of its divisors is an integer number (197674750).

Almost surely, 2^1603120131 is an apocalyptic number.

1603120131 is a deficient number, since it is larger than the sum of its proper divisors (768976869).

1603120131 is a wasteful number, since it uses less digits than its factorization.

1603120131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4344546 (or 4344543 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1603120131 is about 40038.9826419204. The cubic root of 1603120131 is about 1170.3668781518.

Adding to 1603120131 its reverse (1310213061), we get a palindrome (2913333192).

The spelling of 1603120131 in words is "one billion, six hundred three million, one hundred twenty thousand, one hundred thirty-one".