21133023313 has 8 divisors (see below), whose sum is σ = 21743840160. Its totient is φ = 20526748320.

The previous prime is 21133023311. The next prime is 21133023319. The reversal of 21133023313 is 31332033112.

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 21133023313 - 2¹ = 21133023311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21133023311) 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, 1126023 + ... + 1144636.

It is an arithmetic number, because the mean of its divisors is an integer number (2717980020).

Almost surely, 2^21133023313 is an apocalyptic number.

It is an amenable number.

21133023313 is a deficient number, since it is larger than the sum of its proper divisors (610816847).

21133023313 is a wasteful number, since it uses less digits than its factorization.

21133023313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2270927.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 21133023313 its reverse (31332033112), we get a palindrome (52465056425).

The spelling of 21133023313 in words is "twenty-one billion, one hundred thirty-three million, twenty-three thousand, three hundred thirteen".