133013111 has 16 divisors (see below), whose sum is σ = 171555840. Its totient is φ = 100070880.

The previous prime is 133013087. The next prime is 133013119. The reversal of 133013111 is 111310331.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-133013111 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 (133013119) 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, 27551 + ... + 32016.

It is an arithmetic number, because the mean of its divisors is an integer number (10722240).

Almost surely, 2^133013111 is an apocalyptic number.

133013111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

133013111 is a deficient number, since it is larger than the sum of its proper divisors (38542729).

133013111 is a wasteful number, since it uses less digits than its factorization.

133013111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59614.

The product of its (nonzero) digits is 27, while the sum is 14.

The square root of 133013111 is about 11533.1310146031. The cubic root of 133013111 is about 510.4636447541.

Adding to 133013111 its reverse (111310331), we get a palindrome (244323442).

It can be divided in two parts, 1330 and 13111, that added together give a palindrome (14441).

The spelling of 133013111 in words is "one hundred thirty-three million, thirteen thousand, one hundred eleven".