133001021023 has 4 divisors (see below), whose sum is σ = 143231868808. Its totient is φ = 122770173240.

The previous prime is 133001021009. The next prime is 133001021039. The reversal of 133001021023 is 320120100331.

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

It is not a de Polignac number, because 133001021023 - 2⁵ = 133001020991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133001020988 and 133001021006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133001021423) 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, 5115423873 + ... + 5115423898.

It is an arithmetic number, because the mean of its divisors is an integer number (35807967202).

Almost surely, 2^133001021023 is an apocalyptic number.

133001021023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

133001021023 is a deficient number, since it is larger than the sum of its proper divisors (10230847785).

133001021023 is a wasteful number, since it uses less digits than its factorization.

133001021023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10230847784.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 133001021023 its reverse (320120100331), we get a palindrome (453121121354).

The spelling of 133001021023 in words is "one hundred thirty-three billion, one million, twenty-one thousand, twenty-three".