1144312212440 has 64 divisors (see below), whose sum is σ = 2599762586400. Its totient is φ = 453286361088.

The previous prime is 1144312212437. The next prime is 1144312212443. The reversal of 1144312212440 is 442122134411.

It is an interprime number because it is at equal distance from previous prime (1144312212437) and next prime (1144312212443).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144312212443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1948112 + ... + 2466528.

Almost surely, 2^{1144312212440} is an apocalyptic number.

1144312212440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1144312212440 is an abundant number, since it is smaller than the sum of its proper divisors (1455450373960).

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

1144312212440 is a wasteful number, since it uses less digits than its factorization.

1144312212440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518964 (or 518960 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 1144312212440 its reverse (442122134411), we get a palindrome (1586434346851).

The spelling of 1144312212440 in words is "one trillion, one hundred forty-four billion, three hundred twelve million, two hundred twelve thousand, four hundred forty".