201312400003 has 24 divisors (see below), whose sum is σ = 243840503984. Its totient is φ = 165004741440.

The previous prime is 201312399973. The next prime is 201312400021. The reversal of 201312400003 is 300004213102.

It is a happy number.

It is not a de Polignac number, because 201312400003 - 2²⁵ = 201278845571 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201312400003.

It is not an unprimeable number, because it can be changed into a prime (201312400033) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1420500 + ... + 1555777.

Almost surely, 2^201312400003 is an apocalyptic number.

201312400003 is a deficient number, since it is larger than the sum of its proper divisors (42528103981).

201312400003 is a wasteful number, since it uses less digits than its factorization.

201312400003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2976355 (or 2976344 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 201312400003 its reverse (300004213102), we get a palindrome (501316613105).

The spelling of 201312400003 in words is "two hundred one billion, three hundred twelve million, four hundred thousand, three".