1313200111 has 16 divisors (see below), whose sum is σ = 1427569920. Its totient is φ = 1204646080.

The previous prime is 1313200093. The next prime is 1313200121. The reversal of 1313200111 is 1110023131.

It is a cyclic number.

It is not a de Polignac number, because 1313200111 - 2⁷ = 1313199983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1313200091 and 1313200100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313200121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43836 + ... + 67438.

It is an arithmetic number, because the mean of its divisors is an integer number (89223120).

Almost surely, 2^1313200111 is an apocalyptic number.

1313200111 is a deficient number, since it is larger than the sum of its proper divisors (114369809).

1313200111 is a wasteful number, since it uses less digits than its factorization.

1313200111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23726.

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

The square root of 1313200111 is about 36238.1030270626. The cubic root of 1313200111 is about 1095.0744265279.

Adding to 1313200111 its reverse (1110023131), we get a palindrome (2423223242).

The spelling of 1313200111 in words is "one billion, three hundred thirteen million, two hundred thousand, one hundred eleven".