21133212113023 has 8 divisors (see below), whose sum is σ = 21299743958400. Its totient is φ = 20967190320288.

The previous prime is 21133212113011. The next prime is 21133212113053. The reversal of 21133212113023 is 32031121233112.

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 21133212113023 - 2¹⁷ = 21133211981951 is a prime.

It is a super-2 number, since 2×21133212113023² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21133212113053) 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, 127429968 + ... + 127595701.

It is an arithmetic number, because the mean of its divisors is an integer number (2662467994800).

Almost surely, 2^{21133212113023} is an apocalyptic number.

21133212113023 is a deficient number, since it is larger than the sum of its proper divisors (166531845377).

21133212113023 is a wasteful number, since it uses less digits than its factorization.

21133212113023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255026321.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 21133212113023 its reverse (32031121233112), we get a palindrome (53164333346135).

The spelling of 21133212113023 in words is "twenty-one trillion, one hundred thirty-three billion, two hundred twelve million, one hundred thirteen thousand, twenty-three".