1123423212404 has 6 divisors (see below), whose sum is σ = 1965990621714. Its totient is φ = 561711606200.

The previous prime is 1123423212397. The next prime is 1123423212449. The reversal of 1123423212404 is 4042123243211.

It can be written as a sum of positive squares in only one way, i.e., 1096204812004 + 27218400400 = 1046998^2 + 164980^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140427901547 + ... + 140427901554.

It is an arithmetic number, because the mean of its divisors is an integer number (327665103619).

Almost surely, 2^{1123423212404} is an apocalyptic number.

It is an amenable number.

1123423212404 is a deficient number, since it is larger than the sum of its proper divisors (842567409310).

1123423212404 is a wasteful number, since it uses less digits than its factorization.

1123423212404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280855803105 (or 280855803103 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 1123423212404 its reverse (4042123243211), we get a palindrome (5165546455615).

The spelling of 1123423212404 in words is "one trillion, one hundred twenty-three billion, four hundred twenty-three million, two hundred twelve thousand, four hundred four".