1312100321203 has 32 divisors (see below), whose sum is σ = 1552609034240. Its totient is φ = 1085082324480.

The previous prime is 1312100321153. The next prime is 1312100321239. The reversal of 1312100321203 is 3021230012131.

It is not a de Polignac number, because 1312100321203 - 2⁹ = 1312100320691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312100321503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130305853 + ... + 130315921.

It is an arithmetic number, because the mean of its divisors is an integer number (48519032320).

Almost surely, 2^{1312100321203} is an apocalyptic number.

1312100321203 is a deficient number, since it is larger than the sum of its proper divisors (240508713037).

1312100321203 is a wasteful number, since it uses less digits than its factorization.

1312100321203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11867.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1312100321203 its reverse (3021230012131), we get a palindrome (4333330333334).

The spelling of 1312100321203 in words is "one trillion, three hundred twelve billion, one hundred million, three hundred twenty-one thousand, two hundred three".