102004124420402 has 4 divisors (see below), whose sum is σ = 153006186630606. Its totient is φ = 51002062210200.

The previous prime is 102004124420389. The next prime is 102004124420441. The reversal of 102004124420402 is 204024421400201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 100667490155761 + 1336634264641 = 10033319^2 + 1156129^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25501031105099 + ... + 25501031105102.

Almost surely, 2^{102004124420402} is an apocalyptic number.

102004124420402 is a deficient number, since it is larger than the sum of its proper divisors (51002062210204).

102004124420402 is an equidigital number, since it uses as much as digits as its factorization.

102004124420402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51002062210203.

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 102004124420402 its reverse (204024421400201), we get a palindrome (306028545820603).

The spelling of 102004124420402 in words is "one hundred two trillion, four billion, one hundred twenty-four million, four hundred twenty thousand, four hundred two".