123042240292 has 6 divisors (see below), whose sum is σ = 215323920518. Its totient is φ = 61521120144.

The previous prime is 123042240289. The next prime is 123042240311. The reversal of 123042240292 is 292042240321.

123042240292 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 109074309696 + 13967930596 = 330264^2 + 118186^2 .

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 as a sum of consecutive naturals, namely, 15380280033 + ... + 15380280040.

Almost surely, 2^123042240292 is an apocalyptic number.

It is an amenable number.

123042240292 is a deficient number, since it is larger than the sum of its proper divisors (92281680226).

123042240292 is a wasteful number, since it uses less digits than its factorization.

123042240292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30760560077 (or 30760560075 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The spelling of 123042240292 in words is "one hundred twenty-three billion, forty-two million, two hundred forty thousand, two hundred ninety-two".