1312012103 has 8 divisors (see below), whose sum is σ = 1321647600. Its totient is φ = 1302410880.

The previous prime is 1312012099. The next prime is 1312012123. The reversal of 1312012103 is 3012102131.

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 1312012103 - 2² = 1312012099 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 (1312012123) 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, 70943 + ... + 87503.

It is an arithmetic number, because the mean of its divisors is an integer number (165205950).

Almost surely, 2^1312012103 is an apocalyptic number.

1312012103 is a deficient number, since it is larger than the sum of its proper divisors (9635497).

1312012103 is a wasteful number, since it uses less digits than its factorization.

1312012103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17137.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1312012103 is about 36221.7076212594. The cubic root of 1312012103 is about 1094.7441012215.

Adding to 1312012103 its reverse (3012102131), we get a palindrome (4324114234).

The spelling of 1312012103 in words is "one billion, three hundred twelve million, twelve thousand, one hundred three".