102403120402 has 8 divisors (see below), whose sum is σ = 167568742512. Its totient is φ = 46546872900.

The previous prime is 102403120397. The next prime is 102403120427. The reversal of 102403120402 is 204021304201.

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

It is a super-3 number, since 3×102403120402³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 102403120402.

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, 2327343624 + ... + 2327343667.

It is an arithmetic number, because the mean of its divisors is an integer number (20946092814).

Almost surely, 2^102403120402 is an apocalyptic number.

102403120402 is a deficient number, since it is larger than the sum of its proper divisors (65165622110).

102403120402 is a wasteful number, since it uses less digits than its factorization.

102403120402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4654687304.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 102403120402 its reverse (204021304201), we get a palindrome (306424424603).

The spelling of 102403120402 in words is "one hundred two billion, four hundred three million, one hundred twenty thousand, four hundred two".