133033021023 has 32 divisors (see below), whose sum is σ = 209866254336. Its totient is φ = 73382208768.

The previous prime is 133033021019. The next prime is 133033021061. The reversal of 133033021023 is 320120330331.

It is not a de Polignac number, because 133033021023 - 2² = 133033021019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133033021003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 851136 + ... + 995237.

It is an arithmetic number, because the mean of its divisors is an integer number (6558320448).

Almost surely, 2^133033021023 is an apocalyptic number.

133033021023 is a deficient number, since it is larger than the sum of its proper divisors (76833233313).

133033021023 is a wasteful number, since it uses less digits than its factorization.

133033021023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1846503.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 133033021023 its reverse (320120330331), we get a palindrome (453153351354).

The spelling of 133033021023 in words is "one hundred thirty-three billion, thirty-three million, twenty-one thousand, twenty-three".