1242100504242 has 24 divisors (see below), whose sum is σ = 2898234510444. Its totient is φ = 382184770464.

The previous prime is 1242100504171. The next prime is 1242100504279. The reversal of 1242100504242 is 2424050012421.

It is a happy number.

1242100504242 is a `hidden beast` number, since 1 + 24 + 210 + 0 + 5 + 0 + 424 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1058489111241 + 183611393001 = 1028829^2 + 428499^2 .

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, 2654060673 + ... + 2654061140.

Almost surely, 2^{1242100504242} is an apocalyptic number.

1242100504242 is an abundant number, since it is smaller than the sum of its proper divisors (1656134006202).

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

1242100504242 is a wasteful number, since it uses less digits than its factorization.

1242100504242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5308121834 (or 5308121831 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

Adding to 1242100504242 its reverse (2424050012421), we get a palindrome (3666150516663).

The spelling of 1242100504242 in words is "one trillion, two hundred forty-two billion, one hundred million, five hundred four thousand, two hundred forty-two".