202123301312 has 56 divisors (see below), whose sum is σ = 405409847040. Its totient is φ = 99975468800.

The previous prime is 202123301309. The next prime is 202123301321. The reversal of 202123301312 is 213103321202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4903187 + ... + 4944237.

Almost surely, 2^202123301312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202123301312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202704923520).

202123301312 is an abundant number, since it is smaller than the sum of its proper divisors (203286545728).

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

202123301312 is a wasteful number, since it uses less digits than its factorization.

202123301312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41889 (or 41879 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 202123301312 its reverse (213103321202), we get a palindrome (415226622514).

The spelling of 202123301312 in words is "two hundred two billion, one hundred twenty-three million, three hundred one thousand, three hundred twelve".