21342141100 has 162 divisors, whose sum is σ = 55806206820. Its totient is φ = 7063620480.

The previous prime is 21342141061. The next prime is 21342141113. The reversal of 21342141100 is 114124312.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 4118311 + ... + 4123489.

Almost surely, 2^21342141100 is an apocalyptic number.

21342141100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21342141100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27903103410).

21342141100 is an abundant number, since it is smaller than the sum of its proper divisors (34464065720).

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

21342141100 is a wasteful number, since it uses less digits than its factorization.

21342141100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5265 (or 5222 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 21342141100 its reverse (114124312), we get a palindrome (21456265412).

The spelling of 21342141100 in words is "twenty-one billion, three hundred forty-two million, one hundred forty-one thousand, one hundred".