1320133111 has 12 divisors (see below), whose sum is σ = 1455762672. Its totient is φ = 1196228000.

The previous prime is 1320133069. The next prime is 1320133121. The reversal of 1320133111 is 1113310231.

It is not a de Polignac number, because 1320133111 - 2¹⁵ = 1320100343 is a prime.

It is a super-3 number, since 3×1320133111³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320133121) 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, 20091 + ... + 55171.

It is an arithmetic number, because the mean of its divisors is an integer number (121313556).

Almost surely, 2^1320133111 is an apocalyptic number.

1320133111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1320133111 is a deficient number, since it is larger than the sum of its proper divisors (135629561).

1320133111 is a wasteful number, since it uses less digits than its factorization.

1320133111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35414 (or 35403 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1320133111 is about 36333.6360828365. The cubic root of 1320133111 is about 1096.9981823827.

Adding to 1320133111 its reverse (1113310231), we get a palindrome (2433443342).

It can be divided in two parts, 1320 and 133111, that added together give a palindrome (134431).

The spelling of 1320133111 in words is "one billion, three hundred twenty million, one hundred thirty-three thousand, one hundred eleven".