1123102401445 has 4 divisors (see below), whose sum is σ = 1347722881740. Its totient is φ = 898481921152.

The previous prime is 1123102401389. The next prime is 1123102401571. The reversal of 1123102401445 is 5441042013211.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 122336254756 + 1000766146689 = 349766^2 + 1000383^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123102401445 is a prime.

It is a super-2 number, since 2×1123102401445² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112310240140 + ... + 112310240149.

It is an arithmetic number, because the mean of its divisors is an integer number (336930720435).

Almost surely, 2^{1123102401445} is an apocalyptic number.

It is an amenable number.

1123102401445 is a deficient number, since it is larger than the sum of its proper divisors (224620480295).

1123102401445 is an equidigital number, since it uses as much as digits as its factorization.

1123102401445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224620480294.

The product of its (nonzero) digits is 3840, while the sum is 28.

Adding to 1123102401445 its reverse (5441042013211), we get a palindrome (6564144414656).

The spelling of 1123102401445 in words is "one trillion, one hundred twenty-three billion, one hundred two million, four hundred one thousand, four hundred forty-five".