1310120203 has 6 divisors (see below), whose sum is σ = 1524017436. Its totient is φ = 1122960132.

The previous prime is 1310120183. The next prime is 1310120209. The reversal of 1310120203 is 3020210131.

It is not a de Polignac number, because 1310120203 - 2⁹ = 1310119691 is a prime.

It is a super-2 number, since 2×1310120203² = 3432829892617522418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1310120209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13368525 + ... + 13368622.

It is an arithmetic number, because the mean of its divisors is an integer number (254002906).

Almost surely, 2^1310120203 is an apocalyptic number.

1310120203 is a deficient number, since it is larger than the sum of its proper divisors (213897233).

1310120203 is an equidigital number, since it uses as much as digits as its factorization.

1310120203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26737161 (or 26737154 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1310120203 is about 36195.5826448477. The cubic root of 1310120203 is about 1094.2176470629.

Adding to 1310120203 its reverse (3020210131), we get a palindrome (4330330334).

The spelling of 1310120203 in words is "one billion, three hundred ten million, one hundred twenty thousand, two hundred three".