202102323030 has 72 divisors (see below), whose sum is σ = 554577820992. Its totient is φ = 51057420768.

The previous prime is 202102322993. The next prime is 202102323041. The reversal of 202102323030 is 30323201202.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 202102322994 and 202102323012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3077734 + ... + 3142713.

It is an arithmetic number, because the mean of its divisors is an integer number (7702469736).

Almost surely, 2^202102323030 is an apocalyptic number.

202102323030 is an abundant number, since it is smaller than the sum of its proper divisors (352475497962).

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

202102323030 is a wasteful number, since it uses less digits than its factorization.

202102323030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6220498 (or 6220476 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 202102323030 its reverse (30323201202), we get a palindrome (232425524232).

The spelling of 202102323030 in words is "two hundred two billion, one hundred two million, three hundred twenty-three thousand, thirty".