23021212133 has 8 divisors (see below), whose sum is σ = 24591114648. Its totient is φ = 21475277824.

The previous prime is 23021212103. The next prime is 23021212147. The reversal of 23021212133 is 33121212032.

It can be written as a sum of positive squares in 4 ways, for example, as 6379696129 + 16641516004 = 79873^2 + 129002^2 .

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 23021212133 - 2¹⁶ = 23021146597 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 (23021212103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5990066 + ... + 5993907.

It is an arithmetic number, because the mean of its divisors is an integer number (3073889331).

Almost surely, 2^23021212133 is an apocalyptic number.

It is an amenable number.

23021212133 is a deficient number, since it is larger than the sum of its proper divisors (1569902515).

23021212133 is a wasteful number, since it uses less digits than its factorization.

23021212133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11984103.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 23021212133 its reverse (33121212032), we get a palindrome (56142424165).

The spelling of 23021212133 in words is "twenty-three billion, twenty-one million, two hundred twelve thousand, one hundred thirty-three".