1311400223 has 32 divisors (see below), whose sum is σ = 1630666752. Its totient is φ = 1029996000.

The previous prime is 1311400219. The next prime is 1311400267. The reversal of 1311400223 is 3220041131.

It is a cyclic number.

It is not a de Polignac number, because 1311400223 - 2² = 1311400219 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 (1311405223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 512798 + ... + 515348.

It is an arithmetic number, because the mean of its divisors is an integer number (50958336).

Almost surely, 2^1311400223 is an apocalyptic number.

1311400223 is a deficient number, since it is larger than the sum of its proper divisors (319266529).

1311400223 is a wasteful number, since it uses less digits than its factorization.

1311400223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2715.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1311400223 is about 36213.2603199436. The cubic root of 1311400223 is about 1094.5738903475.

Adding to 1311400223 its reverse (3220041131), we get a palindrome (4531441354).

The spelling of 1311400223 in words is "one billion, three hundred eleven million, four hundred thousand, two hundred twenty-three".