231125511 has 8 divisors (see below), whose sum is σ = 311159680. Its totient is φ = 152587512.

The previous prime is 231125483. The next prime is 231125533. The reversal of 231125511 is 115521132.

231125511 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 231125511 - 2¹¹ = 231123463 is a prime.

It is a super-2 number, since 2×231125511² = 106838003670022242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231125561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 373681 + ... + 374298.

It is an arithmetic number, because the mean of its divisors is an integer number (38894960).

Almost surely, 2^231125511 is an apocalyptic number.

231125511 is a deficient number, since it is larger than the sum of its proper divisors (80034169).

231125511 is a wasteful number, since it uses less digits than its factorization.

231125511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748085.

The product of its digits is 300, while the sum is 21.

The square root of 231125511 is about 15202.8126016208. The cubic root of 231125511 is about 613.6903507498.

Adding to 231125511 its reverse (115521132), we get a palindrome (346646643).

The spelling of 231125511 in words is "two hundred thirty-one million, one hundred twenty-five thousand, five hundred eleven".