1312231233103 has 24 divisors (see below), whose sum is σ = 1566692223360. Its totient is φ = 1095292542960.

The previous prime is 1312231233101. The next prime is 1312231233109. The reversal of 1312231233103 is 3013321322131.

It is not a de Polignac number, because 1312231233103 - 2¹ = 1312231233101 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 (1312231233101) 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, 243363 + ... + 1638196.

It is an arithmetic number, because the mean of its divisors is an integer number (65278842640).

Almost surely, 2^{1312231233103} is an apocalyptic number.

1312231233103 is a deficient number, since it is larger than the sum of its proper divisors (254460990257).

1312231233103 is a wasteful number, since it uses less digits than its factorization.

1312231233103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1881947 (or 1881940 counting only the distinct ones).

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

Adding to 1312231233103 its reverse (3013321322131), we get a palindrome (4325552555234).

The spelling of 1312231233103 in words is "one trillion, three hundred twelve billion, two hundred thirty-one million, two hundred thirty-three thousand, one hundred three".