1144323431412 has 96 divisors (see below), whose sum is σ = 3095057989632. Its totient is φ = 322290752256.

The previous prime is 1144323431411. The next prime is 1144323431429. The reversal of 1144323431412 is 2141343234411.

It is a happy number.

It is a super-2 number, since 2×1144323431412² (a number of 25 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144323431411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11127453 + ... + 11229819.

It is an arithmetic number, because the mean of its divisors is an integer number (32240187392).

Almost surely, 2^{1144323431412} is an apocalyptic number.

1144323431412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1144323431412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1547528994816).

1144323431412 is an abundant number, since it is smaller than the sum of its proper divisors (1950734558220).

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

1144323431412 is a wasteful number, since it uses less digits than its factorization.

1144323431412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104277 (or 104275 counting only the distinct ones).

The product of its digits is 27648, while the sum is 33.

Adding to 1144323431412 its reverse (2141343234411), we get a palindrome (3285666665823).

The spelling of 1144323431412 in words is "one trillion, one hundred forty-four billion, three hundred twenty-three million, four hundred thirty-one thousand, four hundred twelve".