1242243525250 has 128 divisors (see below), whose sum is σ = 2889922194432. Its totient is φ = 389331878400.

The previous prime is 1242243525239. The next prime is 1242243525253. The reversal of 1242243525250 is 525253422421.

It is not an unprimeable number, because it can be changed into a prime (1242243525253) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2078182 + ... + 2608318.

It is an arithmetic number, because the mean of its divisors is an integer number (22577517144).

Almost surely, 2^{1242243525250} is an apocalyptic number.

1242243525250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1242243525250 is an abundant number, since it is smaller than the sum of its proper divisors (1647678669182).

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

1242243525250 is a wasteful number, since it uses less digits than its factorization.

1242243525250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530277 (or 530267 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 37.

Adding to 1242243525250 its reverse (525253422421), we get a palindrome (1767496947671).

The spelling of 1242243525250 in words is "one trillion, two hundred forty-two billion, two hundred forty-three million, five hundred twenty-five thousand, two hundred fifty".