1231444334 has 16 divisors (see below), whose sum is σ = 2040860448. Its totient is φ = 554307072.

The previous prime is 1231444327. The next prime is 1231444367. The reversal of 1231444334 is 4334441321.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1231444297 and 1231444306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 786587 + ... + 788150.

It is an arithmetic number, because the mean of its divisors is an integer number (127553778).

Almost surely, 2^1231444334 is an apocalyptic number.

1231444334 is a deficient number, since it is larger than the sum of its proper divisors (809416114).

1231444334 is a wasteful number, since it uses less digits than its factorization.

1231444334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1574779.

The product of its digits is 13824, while the sum is 29.

The square root of 1231444334 is about 35091.9411546298. The cubic root of 1231444334 is about 1071.8604875017.

Adding to 1231444334 its reverse (4334441321), we get a palindrome (5565885655).

The spelling of 1231444334 in words is "one billion, two hundred thirty-one million, four hundred forty-four thousand, three hundred thirty-four".