133021023001 has 4 divisors (see below), whose sum is σ = 135006411472. Its totient is φ = 131035634532.

The previous prime is 133021022903. The next prime is 133021023007. The reversal of 133021023001 is 100320120331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 100320120331 = 877 ⋅114390103.

It is a cyclic number.

It is not a de Polignac number, because 133021023001 - 2²³ = 133012634393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133021023007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 992694135 + ... + 992694268.

It is an arithmetic number, because the mean of its divisors is an integer number (33751602868).

Almost surely, 2^133021023001 is an apocalyptic number.

It is an amenable number.

133021023001 is a deficient number, since it is larger than the sum of its proper divisors (1985388471).

133021023001 is an equidigital number, since it uses as much as digits as its factorization.

133021023001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1985388470.

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

Adding to 133021023001 its reverse (100320120331), we get a palindrome (233341143332).

The spelling of 133021023001 in words is "one hundred thirty-three billion, twenty-one million, twenty-three thousand, one".