1231344301434 has 128 divisors (see below), whose sum is σ = 2787239669760. Its totient is φ = 359813684736.

The previous prime is 1231344301387. The next prime is 1231344301469. The reversal of 1231344301434 is 4341034431321.

It is a junction number, because it is equal to n+sod(n) for n = 1231344301395 and 1231344301404.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 451205782 + ... + 451208510.

It is an arithmetic number, because the mean of its divisors is an integer number (21775309920).

Almost surely, 2^{1231344301434} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1231344301434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1393619834880).

1231344301434 is an abundant number, since it is smaller than the sum of its proper divisors (1555895368326).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1231344301434 is a wasteful number, since it uses less digits than its factorization.

1231344301434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4476.

The product of its (nonzero) digits is 41472, while the sum is 33.

Adding to 1231344301434 its reverse (4341034431321), we get a palindrome (5572378732755).

The spelling of 1231344301434 in words is "one trillion, two hundred thirty-one billion, three hundred forty-four million, three hundred one thousand, four hundred thirty-four".