1213312123103 has 8 divisors (see below), whose sum is σ = 1284824622960. Its totient is φ = 1141815312000.

The previous prime is 1213312123099. The next prime is 1213312123109. The reversal of 1213312123103 is 3013212133121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1213312123103 - 2² = 1213312123099 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 (1213312123109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3762773 + ... + 4072478.

It is an arithmetic number, because the mean of its divisors is an integer number (160603077870).

Almost surely, 2^{1213312123103} is an apocalyptic number.

1213312123103 is a deficient number, since it is larger than the sum of its proper divisors (71512499857).

1213312123103 is an equidigital number, since it uses as much as digits as its factorization.

1213312123103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7844377.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1213312123103 its reverse (3013212133121), we get a palindrome (4226524256224).

The spelling of 1213312123103 in words is "one trillion, two hundred thirteen billion, three hundred twelve million, one hundred twenty-three thousand, one hundred three".