133012023 has 4 divisors (see below), whose sum is σ = 177349368. Its totient is φ = 88674680.

The previous prime is 133012007. The next prime is 133012031. The reversal of 133012023 is 320210331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133012023 - 2⁴ = 133012007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133011993 and 133012011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133012043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22168668 + ... + 22168673.

It is an arithmetic number, because the mean of its divisors is an integer number (44337342).

Almost surely, 2^133012023 is an apocalyptic number.

133012023 is a deficient number, since it is larger than the sum of its proper divisors (44337345).

133012023 is an equidigital number, since it uses as much as digits as its factorization.

133012023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44337344.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 133012023 is about 11533.0838460492. The cubic root of 133012023 is about 510.4622529466.

Adding to 133012023 its reverse (320210331), we get a palindrome (453222354).

The spelling of 133012023 in words is "one hundred thirty-three million, twelve thousand, twenty-three".