1310100203 has 4 divisors (see below), whose sum is σ = 1324820520. Its totient is φ = 1295379888.

The previous prime is 1310100199. The next prime is 1310100229. The reversal of 1310100203 is 3020010131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1310100203 - 2² = 1310100199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1310100503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7360025 + ... + 7360202.

It is an arithmetic number, because the mean of its divisors is an integer number (331205130).

Almost surely, 2^1310100203 is an apocalyptic number.

1310100203 is a deficient number, since it is larger than the sum of its proper divisors (14720317).

1310100203 is an equidigital number, since it uses as much as digits as its factorization.

1310100203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14720316.

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

The square root of 1310100203 is about 36195.3063669863. The cubic root of 1310100203 is about 1094.2120790078.

Adding to 1310100203 its reverse (3020010131), we get a palindrome (4330110334).

The spelling of 1310100203 in words is "one billion, three hundred ten million, one hundred thousand, two hundred three".