1312223131303 has 64 divisors (see below), whose sum is σ = 1629301340160. Its totient is φ = 1031450112000.

The previous prime is 1312223131279. The next prime is 1312223131319. The reversal of 1312223131303 is 3031313222131.

It is not a de Polignac number, because 1312223131303 - 2¹³ = 1312223123111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312223131333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 230171353 + ... + 230177053.

It is an arithmetic number, because the mean of its divisors is an integer number (25457833440).

Almost surely, 2^{1312223131303} is an apocalyptic number.

1312223131303 is a deficient number, since it is larger than the sum of its proper divisors (317078208857).

1312223131303 is a wasteful number, since it uses less digits than its factorization.

1312223131303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6128.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 1312223131303 its reverse (3031313222131), we get a palindrome (4343536353434).

The spelling of 1312223131303 in words is "one trillion, three hundred twelve billion, two hundred twenty-three million, one hundred thirty-one thousand, three hundred three".