131003004 has 48 divisors (see below), whose sum is σ = 334212480. Its totient is φ = 39608640.

The previous prime is 131002997. The next prime is 131003011. The reversal of 131003004 is 400300131.

It is an interprime number because it is at equal distance from previous prime (131002997) and next prime (131003011).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80107 + ... + 81725.

It is an arithmetic number, because the mean of its divisors is an integer number (6962760).

Almost surely, 2^131003004 is an apocalyptic number.

It is an amenable number.

131003004 is an abundant number, since it is smaller than the sum of its proper divisors (203209476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131003004 is a wasteful number, since it uses less digits than its factorization.

131003004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2250 (or 2248 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 131003004 is about 11445.6543718566. The cubic root of 131003004 is about 507.8791898636.

Adding to 131003004 its reverse (400300131), we get a palindrome (531303135).

The spelling of 131003004 in words is "one hundred thirty-one million, three thousand, four".