1242102002 has 8 divisors (see below), whose sum is σ = 1873447212. Its totient is φ = 617619600.

The previous prime is 1242101983. The next prime is 1242102013. The reversal of 1242102002 is 2002012421.

It can be written as a sum of positive squares in 2 ways, for example, as 1213895281 + 28206721 = 34841^2 + 5311^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1715249 + ... + 1715972.

Almost surely, 2^1242102002 is an apocalyptic number.

1242102002 is a deficient number, since it is larger than the sum of its proper divisors (631345210).

1242102002 is a wasteful number, since it uses less digits than its factorization.

1242102002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3431404.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1242102002 is about 35243.4675081780. The cubic root of 1242102002 is about 1074.9437870732.

Adding to 1242102002 its reverse (2002012421), we get a palindrome (3244114423).

The spelling of 1242102002 in words is "one billion, two hundred forty-two million, one hundred two thousand, two".