133110331 has 2 divisors, whose sum is σ = 133110332. Its totient is φ = 133110330.

The previous prime is 133110301. The next prime is 133110343. The reversal of 133110331 is 133011331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133110331 - 2²⁵ = 99555899 is a prime.

It is a super-2 number, since 2×133110331² = 35436720437859122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (133110301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66555165 + 66555166.

It is an arithmetic number, because the mean of its divisors is an integer number (66555166).

Almost surely, 2^133110331 is an apocalyptic number.

133110331 is a deficient number, since it is larger than the sum of its proper divisors (1).

133110331 is an equidigital number, since it uses as much as digits as its factorization.

133110331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81, while the sum is 16.

The square root of 133110331 is about 11537.3450585479. The cubic root of 133110331 is about 510.5879813430.

Adding to 133110331 its reverse (133011331), we get a palindrome (266121662).

The spelling of 133110331 in words is "one hundred thirty-three million, one hundred ten thousand, three hundred thirty-one".