1003020131 has 4 divisors (see below), whose sum is σ = 1003118064. Its totient is φ = 1002922200.

The previous prime is 1003020079. The next prime is 1003020149. The reversal of 1003020131 is 1310203001.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1003020131 - 2²² = 998825827 is a prime.

It is a super-2 number, since 2×1003020131² = 2012098766382514322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1003020191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31535 + ... + 54776.

It is an arithmetic number, because the mean of its divisors is an integer number (250779516).

Almost surely, 2^1003020131 is an apocalyptic number.

1003020131 is a deficient number, since it is larger than the sum of its proper divisors (97933).

1003020131 is an equidigital number, since it uses as much as digits as its factorization.

1003020131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97932.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1003020131 is about 31670.4930653124. The cubic root of 1003020131 is about 1001.0056985647.

Adding to 1003020131 its reverse (1310203001), we get a palindrome (2313223132).

The spelling of 1003020131 in words is "one billion, three million, twenty thousand, one hundred thirty-one".