131020003 has 8 divisors (see below), whose sum is σ = 138862080. Its totient is φ = 123192960.

The previous prime is 131019979. The next prime is 131020007. The reversal of 131020003 is 300020131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131020003 - 2⁵ = 131019971 is a prime.

It is a super-2 number, since 2×131020003² = 34332482372240018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131020007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17758 + ... + 24028.

It is an arithmetic number, because the mean of its divisors is an integer number (17357760).

Almost surely, 2^131020003 is an apocalyptic number.

131020003 is a deficient number, since it is larger than the sum of its proper divisors (7842077).

131020003 is a wasteful number, since it uses less digits than its factorization.

131020003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7517.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 131020003 is about 11446.3969440169. The cubic root of 131020003 is about 507.9011564462.

Adding to 131020003 its reverse (300020131), we get a palindrome (431040134).

The spelling of 131020003 in words is "one hundred thirty-one million, twenty thousand, three".