202031220321030 has 32 divisors (see below), whose sum is σ = 484942338565344. Its totient is φ = 53867502108416.

The previous prime is 202031220321023. The next prime is 202031220321031. The reversal of 202031220321030 is 30123022130202.

It is a happy number.

It is a super-2 number, since 2×202031220321030² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202031220320988 and 202031220321006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202031220321031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 467904189 + ... + 468335768.

It is an arithmetic number, because the mean of its divisors is an integer number (15154448080167).

Almost surely, 2^{202031220321030} is an apocalyptic number.

202031220321030 is an abundant number, since it is smaller than the sum of its proper divisors (282911118244314).

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

202031220321030 is a wasteful number, since it uses less digits than its factorization.

202031220321030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936247160.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 202031220321030 its reverse (30123022130202), we get a palindrome (232154242451232).

The spelling of 202031220321030 in words is "two hundred two trillion, thirty-one billion, two hundred twenty million, three hundred twenty-one thousand, thirty".