1242372732422 has 16 divisors (see below), whose sum is σ = 1973203710192. Its totient is φ = 584639032320.

The previous prime is 1242372732389. The next prime is 1242372732449. The reversal of 1242372732422 is 2242372732421.

It is a self number, because there is not a number n which added to its sum of digits gives 1242372732422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3707273 + ... + 4028475.

It is an arithmetic number, because the mean of its divisors is an integer number (123325231887).

Almost surely, 2^{1242372732422} is an apocalyptic number.

1242372732422 is a deficient number, since it is larger than the sum of its proper divisors (730830977770).

1242372732422 is a wasteful number, since it uses less digits than its factorization.

1242372732422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434983.

The product of its digits is 451584, while the sum is 41.

Subtracting 1242372732422 from its reverse (2242372732421), we obtain a palindrome (999999999999).

The spelling of 1242372732422 in words is "one trillion, two hundred forty-two billion, three hundred seventy-two million, seven hundred thirty-two thousand, four hundred twenty-two".