21141433100 has 36 divisors (see below), whose sum is σ = 45909368904. Its totient is φ = 8450590080.

The previous prime is 21141433037. The next prime is 21141433111. The reversal of 21141433100 is 133414112.

It is a super-2 number, since 2×21141433100² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 68624 + ... + 216776.

Almost surely, 2^21141433100 is an apocalyptic number.

21141433100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21141433100 is an abundant number, since it is smaller than the sum of its proper divisors (24767935804).

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

21141433100 is a wasteful number, since it uses less digits than its factorization.

21141433100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149594 (or 149587 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 21141433100 its reverse (133414112), we get a palindrome (21274847212).

The spelling of 21141433100 in words is "twenty-one billion, one hundred forty-one million, four hundred thirty-three thousand, one hundred".