133834787023 has 4 divisors (see below), whose sum is σ = 152954042320. Its totient is φ = 114715531728.

The previous prime is 133834787017. The next prime is 133834787041. The reversal of 133834787023 is 320787438331.

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

It is not a de Polignac number, because 133834787023 - 2⁹ = 133834786511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133834787123) 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, 9559627638 + ... + 9559627651.

It is an arithmetic number, because the mean of its divisors is an integer number (38238510580).

Almost surely, 2^133834787023 is an apocalyptic number.

133834787023 is a deficient number, since it is larger than the sum of its proper divisors (19119255297).

133834787023 is an equidigital number, since it uses as much as digits as its factorization.

133834787023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19119255296.

The product of its (nonzero) digits is 2032128, while the sum is 49.

The spelling of 133834787023 in words is "one hundred thirty-three billion, eight hundred thirty-four million, seven hundred eighty-seven thousand, twenty-three".