133113331111 has 2 divisors, whose sum is σ = 133113331112. Its totient is φ = 133113331110.

The previous prime is 133113331069. The next prime is 133113331129. The reversal of 133113331111 is 111133311331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133113331111 - 2¹⁷ = 133113200039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133113331171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66556665555 + 66556665556.

It is an arithmetic number, because the mean of its divisors is an integer number (66556665556).

Almost surely, 2^133113331111 is an apocalyptic number.

133113331111 is a deficient number, since it is larger than the sum of its proper divisors (1).

133113331111 is an equidigital number, since it uses as much as digits as its factorization.

133113331111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 243, while the sum is 22.

Adding to 133113331111 its reverse (111133311331), we get a palindrome (244246642442).

The spelling of 133113331111 in words is "one hundred thirty-three billion, one hundred thirteen million, three hundred thirty-one thousand, one hundred eleven".