102420002 has 8 divisors (see below), whose sum is σ = 162667116. Its totient is φ = 48197632.

The previous prime is 102419987. The next prime is 102420061. The reversal of 102420002 is 200024201.

It can be written as a sum of positive squares in 2 ways, for example, as 100982401 + 1437601 = 10049^2 + 1199^2 .

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, 1506143 + ... + 1506210.

Almost surely, 2^102420002 is an apocalyptic number.

102420002 is a deficient number, since it is larger than the sum of its proper divisors (60247114).

102420002 is a wasteful number, since it uses less digits than its factorization.

102420002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3012372.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 102420002 is about 10120.2767748713. The cubic root of 102420002 is about 467.8732976949.

Adding to 102420002 its reverse (200024201), we get a palindrome (302444203).

The spelling of 102420002 in words is "one hundred two million, four hundred twenty thousand, two".