2001510231 has 16 divisors (see below), whose sum is σ = 3084192000. Its totient is φ = 1130868288.

The previous prime is 2001510193. The next prime is 2001510289. The reversal of 2001510231 is 1320151002.

It is not a de Polignac number, because 2001510231 - 2¹⁴ = 2001493847 is a prime.

It is a super-2 number, since 2×2001510231² = 8012086409595346722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2001510231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001510431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 533581 + ... + 537318.

It is an arithmetic number, because the mean of its divisors is an integer number (192762000).

Almost surely, 2^2001510231 is an apocalyptic number.

2001510231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2001510231 is a deficient number, since it is larger than the sum of its proper divisors (1082681769).

2001510231 is a wasteful number, since it uses less digits than its factorization.

2001510231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070998.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 2001510231 is about 44738.2412595757. The cubic root of 2001510231 is about 1260.2380987433.

Adding to 2001510231 its reverse (1320151002), we get a palindrome (3321661233).

The spelling of 2001510231 in words is "two billion, one million, five hundred ten thousand, two hundred thirty-one".