201100310421 has 4 divisors (see below), whose sum is σ = 268133747232. Its totient is φ = 134066873612.

The previous prime is 201100310407. The next prime is 201100310441. The reversal of 201100310421 is 124013001102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201100310421 - 2⁷ = 201100310293 is a prime.

It is a super-2 number, since 2×201100310421² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 201100310421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201100310441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33516718401 + ... + 33516718406.

It is an arithmetic number, because the mean of its divisors is an integer number (67033436808).

Almost surely, 2^201100310421 is an apocalyptic number.

It is an amenable number.

201100310421 is a deficient number, since it is larger than the sum of its proper divisors (67033436811).

201100310421 is an equidigital number, since it uses as much as digits as its factorization.

201100310421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67033436810.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 201100310421 its reverse (124013001102), we get a palindrome (325113311523).

The spelling of 201100310421 in words is "two hundred one billion, one hundred million, three hundred ten thousand, four hundred twenty-one".