123140322 has 24 divisors (see below), whose sum is σ = 276005340. Its totient is φ = 39631200.

The previous prime is 123140291. The next prime is 123140327. The reversal of 123140322 is 223041321.

It can be written as a sum of positive squares in 2 ways, for example, as 108555561 + 14584761 = 10419^2 + 3819^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 123140295 and 123140304.

It is not an unprimeable number, because it can be changed into a prime (123140327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117429 + ... + 118472.

Almost surely, 2^123140322 is an apocalyptic number.

123140322 is an abundant number, since it is smaller than the sum of its proper divisors (152865018).

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

123140322 is a wasteful number, since it uses less digits than its factorization.

123140322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235938 (or 235935 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 123140322 is about 11096.8609074819. The cubic root of 123140322 is about 497.5080301390.

Adding to 123140322 its reverse (223041321), we get a palindrome (346181643).

Subtracting 123140322 from its reverse (223041321), we obtain a palindrome (99900999).

The spelling of 123140322 in words is "one hundred twenty-three million, one hundred forty thousand, three hundred twenty-two".