427111231 has 8 divisors (see below), whose sum is σ = 438165504. Its totient is φ = 416139000.

The previous prime is 427111229. The next prime is 427111253. The reversal of 427111231 is 132111724.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 427111231 - 2¹ = 427111229 is a prime.

It is a super-2 number, since 2×427111231² = 364848007292670722, 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 (427111261) 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, 9895 + ... + 30856.

It is an arithmetic number, because the mean of its divisors is an integer number (54770688).

Almost surely, 2^427111231 is an apocalyptic number.

427111231 is a deficient number, since it is larger than the sum of its proper divisors (11054273).

427111231 is a wasteful number, since it uses less digits than its factorization.

427111231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41021.

The product of its digits is 336, while the sum is 22.

The square root of 427111231 is about 20666.6695672041. The cubic root of 427111231 is about 753.0902017541.

Adding to 427111231 its reverse (132111724), we get a palindrome (559222955).

The spelling of 427111231 in words is "four hundred twenty-seven million, one hundred eleven thousand, two hundred thirty-one".