21101323300 has 36 divisors (see below), whose sum is σ = 45801009520. Its totient is φ = 8438476320.

The previous prime is 21101323277. The next prime is 21101323333. The reversal of 21101323300 is 332310112.

It is a super-2 number, since 2×21101323300² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 427291 + ... + 474109.

Almost surely, 2^21101323300 is an apocalyptic number.

21101323300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21101323300 is an abundant number, since it is smaller than the sum of its proper divisors (24699686220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21101323300 is a wasteful number, since it uses less digits than its factorization.

21101323300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51340 (or 51333 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 21101323300 its reverse (332310112), we get a palindrome (21433633412).

The spelling of 21101323300 in words is "twenty-one billion, one hundred one million, three hundred twenty-three thousand, three hundred".