1322123340042 has 24 divisors (see below), whose sum is σ = 2864622040644. Its totient is φ = 440704476864.

The previous prime is 1322123340001. The next prime is 1322123340061. The reversal of 1322123340042 is 2400433212231.

1322123340042 is a `hidden beast` number, since 1 + 3 + 2 + 21 + 233 + 400 + 4 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1194410737881 + 127712602161 = 1092891^2 + 357369^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1322123339988 and 1322123340015.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3926328 + ... + 4249740.

Almost surely, 2^{1322123340042} is an apocalyptic number.

1322123340042 is an abundant number, since it is smaller than the sum of its proper divisors (1542498700602).

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

1322123340042 is a wasteful number, since it uses less digits than its factorization.

1322123340042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550534 (or 550531 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 1322123340042 its reverse (2400433212231), we get a palindrome (3722556552273).

The spelling of 1322123340042 in words is "one trillion, three hundred twenty-two billion, one hundred twenty-three million, three hundred forty thousand, forty-two".