202031130 has 128 divisors (see below), whose sum is σ = 572479488. Its totient is φ = 44681472.

The previous prime is 202031129. The next prime is 202031131. The reversal of 202031130 is 31130202.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (202031129) and next prime (202031131).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (202031131) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1167724 + ... + 1167896.

It is an arithmetic number, because the mean of its divisors is an integer number (4472496).

Almost surely, 2^202031130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202031130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286239744).

202031130 is an abundant number, since it is smaller than the sum of its proper divisors (370448358).

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

202031130 is a wasteful number, since it uses less digits than its factorization.

202031130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 202031130 is about 14213.7655109404. The cubic root of 202031130 is about 586.7765702472.

Adding to 202031130 its reverse (31130202), we get a palindrome (233161332).

The spelling of 202031130 in words is "two hundred two million, thirty-one thousand, one hundred thirty".