131211003 has 64 divisors (see below), whose sum is σ = 229146624. Its totient is φ = 64800000.

The previous prime is 131210999. The next prime is 131211007. The reversal of 131211003 is 300112131.

It is an interprime number because it is at equal distance from previous prime (131210999) and next prime (131211007).

It is not a de Polignac number, because 131211003 - 2² = 131210999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131211003.

It is not an unprimeable number, because it can be changed into a prime (131211007) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 522628 + ... + 522878.

It is an arithmetic number, because the mean of its divisors is an integer number (3580416).

Almost surely, 2^131211003 is an apocalyptic number.

131211003 is a deficient number, since it is larger than the sum of its proper divisors (97935621).

131211003 is a wasteful number, since it uses less digits than its factorization.

131211003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 131211003 is about 11454.7371423355. The cubic root of 131211003 is about 508.1478414741.

Adding to 131211003 its reverse (300112131), we get a palindrome (431323134).

The spelling of 131211003 in words is "one hundred thirty-one million, two hundred eleven thousand, three".