21341131100 has 36 divisors (see below), whose sum is σ = 46896477600. Its totient is φ = 8428392960.

The previous prime is 21341131079. The next prime is 21341131121. The reversal of 21341131100 is 113114312.

It is an interprime number because it is at equal distance from previous prime (21341131079) and next prime (21341131121).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1342805 + ... + 1358604.

Almost surely, 2^21341131100 is an apocalyptic number.

21341131100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21341131100 is an abundant number, since it is smaller than the sum of its proper divisors (25555346500).

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

21341131100 is a wasteful number, since it uses less digits than its factorization.

21341131100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2701502 (or 2701495 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 21341131100 its reverse (113114312), we get a palindrome (21454245412).

The spelling of 21341131100 in words is "twenty-one billion, three hundred forty-one million, one hundred thirty-one thousand, one hundred".