1311444454254 has 128 divisors (see below), whose sum is σ = 3086133903360. Its totient is φ = 367558435200.

The previous prime is 1311444454217. The next prime is 1311444454303. The reversal of 1311444454254 is 4524544441131.

It is a congruent number.

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, 5343259 + ... + 5583305.

It is an arithmetic number, because the mean of its divisors is an integer number (24110421120).

Almost surely, 2^{1311444454254} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1311444454254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1543066951680).

1311444454254 is an abundant number, since it is smaller than the sum of its proper divisors (1774689449106).

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

1311444454254 is a wasteful number, since it uses less digits than its factorization.

1311444454254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240206.

The product of its digits is 614400, while the sum is 42.

Adding to 1311444454254 its reverse (4524544441131), we get a palindrome (5835988895385).

The spelling of 1311444454254 in words is "one trillion, three hundred eleven billion, four hundred forty-four million, four hundred fifty-four thousand, two hundred fifty-four".