1144323402220 has 48 divisors (see below), whose sum is σ = 2419157301120. Its totient is φ = 454671646976.

The previous prime is 1144323402199. The next prime is 1144323402241. The reversal of 1144323402220 is 222043234411.

It is an interprime number because it is at equal distance from previous prime (1144323402199) and next prime (1144323402241).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3688029 + ... + 3986251.

It is an arithmetic number, because the mean of its divisors is an integer number (50399110440).

Almost surely, 2^{1144323402220} is an apocalyptic number.

1144323402220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1144323402220 is an abundant number, since it is smaller than the sum of its proper divisors (1274833898900).

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

1144323402220 is a wasteful number, since it uses less digits than its factorization.

1144323402220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299514 (or 299512 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 1144323402220 its reverse (222043234411), we get a palindrome (1366366636631).

The spelling of 1144323402220 in words is "one trillion, one hundred forty-four billion, three hundred twenty-three million, four hundred two thousand, two hundred twenty".