202400212123 has 8 divisors (see below), whose sum is σ = 205296664320. Its totient is φ = 199505030760.

The previous prime is 202400212103. The next prime is 202400212141. The reversal of 202400212123 is 321212004202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 202400212123 - 2¹³ = 202400203931 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 202400212123.

It is not an unprimeable number, because it can be changed into a prime (202400212103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5436 + ... + 636262.

It is an arithmetic number, because the mean of its divisors is an integer number (25662083040).

Almost surely, 2^202400212123 is an apocalyptic number.

202400212123 is a deficient number, since it is larger than the sum of its proper divisors (2896452197).

202400212123 is an equidigital number, since it uses as much as digits as its factorization.

202400212123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635417.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 202400212123 its reverse (321212004202), we get a palindrome (523612216325).

The spelling of 202400212123 in words is "two hundred two billion, four hundred million, two hundred twelve thousand, one hundred twenty-three".