1242103125204 has 30 divisors (see below), whose sum is σ = 3247102923834. Its totient is φ = 414034374960.

The previous prime is 1242103125143. The next prime is 1242103125217. The reversal of 1242103125204 is 4025213012421.

1242103125204 is a `hidden beast` number, since 1 + 2 + 421 + 0 + 31 + 2 + 5 + 204 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1013525427600 + 228577697604 = 1006740^2 + 478098^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1916825487 + ... + 1916826134.

Almost surely, 2^{1242103125204} is an apocalyptic number.

It is an amenable number.

1242103125204 is an abundant number, since it is smaller than the sum of its proper divisors (2004999798630).

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

1242103125204 is a wasteful number, since it uses less digits than its factorization.

1242103125204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3833651637 (or 3833651626 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 1242103125204 its reverse (4025213012421), we get a palindrome (5267316137625).

The spelling of 1242103125204 in words is "one trillion, two hundred forty-two billion, one hundred three million, one hundred twenty-five thousand, two hundred four".