202113312 has 24 divisors (see below), whose sum is σ = 530547696. Its totient is φ = 67371072.

The previous prime is 202113311. The next prime is 202113319. The reversal of 202113312 is 213311202.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 202113291 and 202113300.

It is not an unprimeable number, because it can be changed into a prime (202113311) 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, 1052578 + ... + 1052769.

It is an arithmetic number, because the mean of its divisors is an integer number (22106154).

Almost surely, 2^202113312 is an apocalyptic number.

It is an amenable number.

202113312 is an abundant number, since it is smaller than the sum of its proper divisors (328434384).

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

202113312 is a wasteful number, since it uses less digits than its factorization.

202113312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2105360 (or 2105352 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 202113312 is about 14216.6561469285. The cubic root of 202113312 is about 586.8561222366.

Adding to 202113312 its reverse (213311202), we get a palindrome (415424514).

The spelling of 202113312 in words is "two hundred two million, one hundred thirteen thousand, three hundred twelve".