1231227423 has 6 divisors (see below), whose sum is σ = 1778439624. Its totient is φ = 820818276.

The previous prime is 1231227409. The next prime is 1231227433. The reversal of 1231227423 is 3247221321.

1231227423 is a `hidden beast` number, since 1 + 231 + 2 + 2 + 7 + 423 = 666.

It is not a de Polignac number, because 1231227423 - 2²⁴ = 1214450207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231227433) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 68401515 + ... + 68401532.

It is an arithmetic number, because the mean of its divisors is an integer number (296406604).

Almost surely, 2^1231227423 is an apocalyptic number.

1231227423 is a deficient number, since it is larger than the sum of its proper divisors (547212201).

1231227423 is a wasteful number, since it uses less digits than its factorization.

1231227423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136803053 (or 136803050 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 1231227423 is about 35088.8504086412. The cubic root of 1231227423 is about 1071.7975500289.

Adding to 1231227423 its reverse (3247221321), we get a palindrome (4478448744).

The spelling of 1231227423 in words is "one billion, two hundred thirty-one million, two hundred twenty-seven thousand, four hundred twenty-three".