1603130221 has 16 divisors (see below), whose sum is σ = 2002825728. Its totient is φ = 1246618800.

The previous prime is 1603130201. The next prime is 1603130227. The reversal of 1603130221 is 1220313061.

It is not a de Polignac number, because 1603130221 - 2⁷ = 1603130093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1603130227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16606 + ... + 59008.

It is an arithmetic number, because the mean of its divisors is an integer number (125176608).

Almost surely, 2^1603130221 is an apocalyptic number.

1603130221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1603130221 is a deficient number, since it is larger than the sum of its proper divisors (399695507).

1603130221 is a wasteful number, since it uses less digits than its factorization.

1603130221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42912.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1603130221 is about 40039.1086439246. The cubic root of 1603130221 is about 1170.3693335671.

Adding to 1603130221 its reverse (1220313061), we get a palindrome (2823443282).

The spelling of 1603130221 in words is "one billion, six hundred three million, one hundred thirty thousand, two hundred twenty-one".