1311224103 has 24 divisors (see below), whose sum is σ = 2196874368. Its totient is φ = 738085392.

The previous prime is 1311224099. The next prime is 1311224107. The reversal of 1311224103 is 3014221131.

1311224103 is a `hidden beast` number, since 131 + 122 + 410 + 3 = 666.

1311224103 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1311224099) and next prime (1311224107).

It is not a de Polignac number, because 1311224103 - 2² = 1311224099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311224107) 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, 151101 + ... + 159542.

It is an arithmetic number, because the mean of its divisors is an integer number (91536432).

Almost surely, 2^1311224103 is an apocalyptic number.

1311224103 is a deficient number, since it is larger than the sum of its proper divisors (885650265).

1311224103 is a wasteful number, since it uses less digits than its factorization.

1311224103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310723 (or 310720 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1311224103 is about 36210.8285323603. The cubic root of 1311224103 is about 1094.5248880214.

Adding to 1311224103 its reverse (3014221131), we get a palindrome (4325445234).

The spelling of 1311224103 in words is "one billion, three hundred eleven million, two hundred twenty-four thousand, one hundred three".