201120321400 has 96 divisors (see below), whose sum is σ = 488172326400. Its totient is φ = 76913020800.

The previous prime is 201120321383. The next prime is 201120321433. The reversal of 201120321400 is 4123021102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10621141 + ... + 10640059.

It is an arithmetic number, because the mean of its divisors is an integer number (5085128400).

Almost surely, 2^201120321400 is an apocalyptic number.

201120321400 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 201120321400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244086163200).

201120321400 is an abundant number, since it is smaller than the sum of its proper divisors (287052005000).

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

201120321400 is a wasteful number, since it uses less digits than its factorization.

201120321400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21269 (or 21260 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 201120321400 its reverse (4123021102), we get a palindrome (205243342502).

The spelling of 201120321400 in words is "two hundred one billion, one hundred twenty million, three hundred twenty-one thousand, four hundred".