1312003111 has 8 divisors (see below), whose sum is σ = 1366314624. Its totient is φ = 1258440960.

The previous prime is 1312003103. The next prime is 1312003117. The reversal of 1312003111 is 1113002131.

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 1312003111 - 2³ = 1312003103 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1312003091 and 1312003100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312003117) 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, 183766 + ... + 190771.

It is an arithmetic number, because the mean of its divisors is an integer number (170789328).

Almost surely, 2^1312003111 is an apocalyptic number.

1312003111 is a deficient number, since it is larger than the sum of its proper divisors (54311513).

1312003111 is a wasteful number, since it uses less digits than its factorization.

1312003111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374681.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1312003111 is about 36221.5834965839. The cubic root of 1312003111 is about 1094.7416002381.

Adding to 1312003111 its reverse (1113002131), we get a palindrome (2425005242).

The spelling of 1312003111 in words is "one billion, three hundred twelve million, three thousand, one hundred eleven".