21032314100 has 288 divisors, whose sum is σ = 57079680000. Its totient is φ = 6703482240.

The previous prime is 21032314091. The next prime is 21032314109. The reversal of 21032314100 is 141323012.

It is an interprime number because it is at equal distance from previous prime (21032314091) and next prime (21032314109).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21032314109) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 38450027 + ... + 38450573.

Almost surely, 2^21032314100 is an apocalyptic number.

21032314100 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 21032314100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28539840000).

21032314100 is an abundant number, since it is smaller than the sum of its proper divisors (36047365900).

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

21032314100 is a wasteful number, since it uses less digits than its factorization.

21032314100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660 (or 639 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21032314100 its reverse (141323012), we get a palindrome (21173637112).

The spelling of 21032314100 in words is "twenty-one billion, thirty-two million, three hundred fourteen thousand, one hundred".