1102402342042 has 8 divisors (see below), whose sum is σ = 1653607970100. Its totient is φ = 551199685344.

The previous prime is 1102402342003. The next prime is 1102402342163. The reversal of 1102402342042 is 2402432042011.

It can be written as a sum of positive squares in 2 ways, for example, as 1074935577681 + 27466764361 = 1036791^2 + 165731^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1102402341998 and 1102402342016.

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, 1052584 + ... + 1820092.

Almost surely, 2^{1102402342042} is an apocalyptic number.

1102402342042 is a deficient number, since it is larger than the sum of its proper divisors (551205628058).

1102402342042 is an equidigital number, since it uses as much as digits as its factorization.

1102402342042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1485680.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 1102402342042 its reverse (2402432042011), we get a palindrome (3504834384053).

The spelling of 1102402342042 in words is "one trillion, one hundred two billion, four hundred two million, three hundred forty-two thousand, forty-two".