1144402123331 has 4 divisors (see below), whose sum is σ = 1144404274200. Its totient is φ = 1144399972464.

The previous prime is 1144402123321. The next prime is 1144402123363. The reversal of 1144402123331 is 1333212044411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1144402123331 is a prime.

It is a super-2 number, since 2×1144402123331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1144402123294 and 1144402123303.

It is not an unprimeable number, because it can be changed into a prime (1144402123321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 372335 + ... + 1558023.

It is an arithmetic number, because the mean of its divisors is an integer number (286101068550).

Almost surely, 2^{1144402123331} is an apocalyptic number.

1144402123331 is a deficient number, since it is larger than the sum of its proper divisors (2150869).

1144402123331 is an equidigital number, since it uses as much as digits as its factorization.

1144402123331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2150868.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 1144402123331 its reverse (1333212044411), we get a palindrome (2477614167742).

The spelling of 1144402123331 in words is "one trillion, one hundred forty-four billion, four hundred two million, one hundred twenty-three thousand, three hundred thirty-one".