21314203533 has 48 divisors (see below), whose sum is σ = 35876131200. Its totient is φ = 11941522560.

The previous prime is 21314203531. The next prime is 21314203541. The reversal of 21314203533 is 33530241312.

It is not a de Polignac number, because 21314203533 - 2¹ = 21314203531 is a prime.

It is a super-2 number, since 2×21314203533² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21314203497 and 21314203506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21314203531) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1438543 + ... + 1453283.

It is an arithmetic number, because the mean of its divisors is an integer number (747419400).

Almost surely, 2^21314203533 is an apocalyptic number.

It is an amenable number.

21314203533 is a deficient number, since it is larger than the sum of its proper divisors (14561927667).

21314203533 is a wasteful number, since it uses less digits than its factorization.

21314203533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15202 (or 15199 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

Adding to 21314203533 its reverse (33530241312), we get a palindrome (54844444845).

The spelling of 21314203533 in words is "twenty-one billion, three hundred fourteen million, two hundred three thousand, five hundred thirty-three".