501112231 has 4 divisors (see below), whose sum is σ = 501163992. Its totient is φ = 501060472.

The previous prime is 501112219. The next prime is 501112237. The reversal of 501112231 is 132211105.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 501112231 - 2¹⁵ = 501079463 is a prime.

It is a super-2 number, since 2×501112231² = 502226936115594722, 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 (501112237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6541 + ... + 32326.

It is an arithmetic number, because the mean of its divisors is an integer number (125290998).

Almost surely, 2^501112231 is an apocalyptic number.

501112231 is a deficient number, since it is larger than the sum of its proper divisors (51761).

501112231 is a wasteful number, since it uses less digits than its factorization.

501112231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51760.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 501112231 is about 22385.5362008597. The cubic root of 501112231 is about 794.2886090298.

Adding to 501112231 its reverse (132211105), we get a palindrome (633323336).

The spelling of 501112231 in words is "five hundred one million, one hundred twelve thousand, two hundred thirty-one".