1231214423 has 16 divisors (see below), whose sum is σ = 1274326176. Its totient is φ = 1189002240.

The previous prime is 1231214417. The next prime is 1231214429. The reversal of 1231214423 is 3244121321.

It is an interprime number because it is at equal distance from previous prime (1231214417) and next prime (1231214429).

It is not a de Polignac number, because 1231214423 - 2⁶ = 1231214359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231214429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1259711 + ... + 1260687.

It is an arithmetic number, because the mean of its divisors is an integer number (79645386).

Almost surely, 2^1231214423 is an apocalyptic number.

1231214423 is a deficient number, since it is larger than the sum of its proper divisors (43111753).

1231214423 is an equidigital number, since it uses as much as digits as its factorization.

1231214423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1394.

The product of its digits is 1152, while the sum is 23.

The square root of 1231214423 is about 35088.6651641239. The cubic root of 1231214423 is about 1071.7937777994.

Adding to 1231214423 its reverse (3244121321), we get a palindrome (4475335744).

The spelling of 1231214423 in words is "one billion, two hundred thirty-one million, two hundred fourteen thousand, four hundred twenty-three".