202121131302 has 64 divisors (see below), whose sum is σ = 469924416000. Its totient is φ = 64274230944.

The previous prime is 202121131297. The next prime is 202121131319. The reversal of 202121131302 is 203131121202.

202121131302 is a `hidden beast` number, since 20 + 212 + 1 + 131 + 302 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 256024 + ... + 685412.

It is an arithmetic number, because the mean of its divisors is an integer number (7342569000).

Almost surely, 2^202121131302 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202121131302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234962208000).

202121131302 is an abundant number, since it is smaller than the sum of its proper divisors (267803284698).

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

202121131302 is a wasteful number, since it uses less digits than its factorization.

202121131302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429802 (or 429796 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 202121131302 its reverse (203131121202), we get a palindrome (405252252504).

The spelling of 202121131302 in words is "two hundred two billion, one hundred twenty-one million, one hundred thirty-one thousand, three hundred two".