102020002 has 16 divisors (see below), whose sum is σ = 176068800. Its totient is φ = 43428528.

The previous prime is 102019997. The next prime is 102020021. The reversal of 102020002 is 200020201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22368 + ... + 26539.

It is an arithmetic number, because the mean of its divisors is an integer number (11004300).

Almost surely, 2^102020002 is an apocalyptic number.

102020002 is a deficient number, since it is larger than the sum of its proper divisors (74048798).

102020002 is a wasteful number, since it uses less digits than its factorization.

102020002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49065.

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 102020002 is about 10100.4951363782. The cubic root of 102020002 is about 467.2634119895.

Adding to 102020002 its reverse (200020201), we get a palindrome (302040203).

The spelling of 102020002 in words is "one hundred two million, twenty thousand, two".