133145521023 has 8 divisors (see below), whose sum is σ = 178590400128. Its totient is φ = 88232161304.

The previous prime is 133145521021. The next prime is 133145521043. The reversal of 133145521023 is 320125541331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133145521023 - 2¹ = 133145521021 is a prime.

It is a super-2 number, since 2×133145521023² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133145521021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132879261 + ... + 132880262.

It is an arithmetic number, because the mean of its divisors is an integer number (22323800016).

Almost surely, 2^133145521023 is an apocalyptic number.

133145521023 is a deficient number, since it is larger than the sum of its proper divisors (45444879105).

133145521023 is a wasteful number, since it uses less digits than its factorization.

133145521023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265759693.

The product of its (nonzero) digits is 10800, while the sum is 30.

The spelling of 133145521023 in words is "one hundred thirty-three billion, one hundred forty-five million, five hundred twenty-one thousand, twenty-three".