231202130 has 16 divisors (see below), whose sum is σ = 420286104. Its totient is φ = 91564800.

The previous prime is 231202121. The next prime is 231202171. The reversal of 231202130 is 31202132.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 230037889 + 1164241 = 15167^2 + 1079^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113447 + ... + 115466.

Almost surely, 2^231202130 is an apocalyptic number.

231202130 is a deficient number, since it is larger than the sum of its proper divisors (189083974).

231202130 is a wasteful number, since it uses less digits than its factorization.

231202130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229021.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 231202130 is about 15205.3322883783. The cubic root of 231202130 is about 613.7581568319.

Adding to 231202130 its reverse (31202132), we get a palindrome (262404262).

The spelling of 231202130 in words is "two hundred thirty-one million, two hundred two thousand, one hundred thirty".