133330231111 has 16 divisors (see below), whose sum is σ = 166239083520. Its totient is φ = 103887946080.

The previous prime is 133330231103. The next prime is 133330231117. The reversal of 133330231111 is 111132033331.

It is a cyclic number.

It is not a de Polignac number, because 133330231111 - 2³ = 133330231103 is a prime.

It is a super-2 number, since 2×133330231111² (a number of 23 digits) contains 22 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 (133330231117) 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, 1830685 + ... + 1902121.

It is an arithmetic number, because the mean of its divisors is an integer number (10389942720).

Almost surely, 2^133330231111 is an apocalyptic number.

133330231111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

133330231111 is a deficient number, since it is larger than the sum of its proper divisors (32908852409).

133330231111 is a wasteful number, since it uses less digits than its factorization.

133330231111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95694.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 133330231111 its reverse (111132033331), we get a palindrome (244462264442).

The spelling of 133330231111 in words is "one hundred thirty-three billion, three hundred thirty million, two hundred thirty-one thousand, one hundred eleven".