1311120413 has 12 divisors (see below), whose sum is σ = 1364895168. Its totient is φ = 1258885680.

The previous prime is 1311120409. The next prime is 1311120431. The reversal of 1311120413 is 3140211131.

It is not a de Polignac number, because 1311120413 - 2² = 1311120409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1311120391 and 1311120400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311123413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 127058 + ... + 136988.

It is an arithmetic number, because the mean of its divisors is an integer number (113741264).

Almost surely, 2^1311120413 is an apocalyptic number.

It is an amenable number.

1311120413 is a deficient number, since it is larger than the sum of its proper divisors (53774755).

1311120413 is an frugal number, since it uses more digits than its factorization.

1311120413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10084 (or 10031 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1311120413 is about 36209.3967500150. The cubic root of 1311120413 is about 1094.4960360306.

Adding to 1311120413 its reverse (3140211131), we get a palindrome (4451331544).

The spelling of 1311120413 in words is "one billion, three hundred eleven million, one hundred twenty thousand, four hundred thirteen".