2001131230 has 64 divisors (see below), whose sum is σ = 4196338560. Its totient is φ = 672883200.

The previous prime is 2001131219. The next prime is 2001131299. The reversal of 2001131230 is 321311002.

It is a self number, because there is not a number n which added to its sum of digits gives 2001131230.

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, 2822116 + ... + 2822824.

It is an arithmetic number, because the mean of its divisors is an integer number (65567790).

Almost surely, 2^2001131230 is an apocalyptic number.

2001131230 is an abundant number, since it is smaller than the sum of its proper divisors (2195207330).

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

2001131230 is a wasteful number, since it uses less digits than its factorization.

2001131230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1445.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 2001131230 is about 44734.0052979833. The cubic root of 2001131230 is about 1260.1585485378.

Adding to 2001131230 its reverse (321311002), we get a palindrome (2322442232).

The spelling of 2001131230 in words is "two billion, one million, one hundred thirty-one thousand, two hundred thirty".