21200410231 has 32 divisors (see below), whose sum is σ = 29383151616. Its totient is φ = 14757120000.

The previous prime is 21200410223. The next prime is 21200410237. The reversal of 21200410231 is 13201400212.

It is not a de Polignac number, because 21200410231 - 2³ = 21200410223 is a prime.

It is a super-2 number, since 2×21200410231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21200410237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 310570 + ... + 372631.

It is an arithmetic number, because the mean of its divisors is an integer number (918223488).

Almost surely, 2^21200410231 is an apocalyptic number.

21200410231 is a deficient number, since it is larger than the sum of its proper divisors (8182741385).

21200410231 is a wasteful number, since it uses less digits than its factorization.

21200410231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683263.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 21200410231 its reverse (13201400212), we get a palindrome (34401810443).

The spelling of 21200410231 in words is "twenty-one billion, two hundred million, four hundred ten thousand, two hundred thirty-one".