1123642411465 has 24 divisors (see below), whose sum is σ = 1595098068480. Its totient is φ = 757438361568.

The previous prime is 1123642411459. The next prime is 1123642411481. The reversal of 1123642411465 is 5641142463211.

It is not a de Polignac number, because 1123642411465 - 2³⁵ = 1089282673097 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38852457 + ... + 38881366.

It is an arithmetic number, because the mean of its divisors is an integer number (66462419520).

Almost surely, 2^{1123642411465} is an apocalyptic number.

It is an amenable number.

1123642411465 is a deficient number, since it is larger than the sum of its proper divisors (471455657015).

1123642411465 is an equidigital number, since it uses as much as digits as its factorization.

1123642411465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77733901 (or 77733894 counting only the distinct ones).

The product of its digits is 138240, while the sum is 40.

Adding to 1123642411465 its reverse (5641142463211), we get a palindrome (6764784874676).

The spelling of 1123642411465 in words is "one trillion, one hundred twenty-three billion, six hundred forty-two million, four hundred eleven thousand, four hundred sixty-five".