1010020002 has 8 divisors (see below), whose sum is σ = 2020040016. Its totient is φ = 336673332.

The previous prime is 1010019979. The next prime is 1010020003. The reversal of 1010020002 is 2000200101.

It is a happy number.

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

1010020002 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (6), and also a Moran number because the ratio is a prime number: 168336667 = 1010020002 / (1 + 0 + 1 + 0 + 0 + 2 + 0 + 0 + 0 + 2).

It is not an unprimeable number, because it can be changed into a prime (1010020003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84168328 + ... + 84168339.

It is an arithmetic number, because the mean of its divisors is an integer number (252505002).

Almost surely, 2^1010020002 is an apocalyptic number.

1010020002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1010020002 is a wasteful number, since it uses less digits than its factorization.

1010020002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168336672.

The product of its (nonzero) digits is 4, while the sum is 6.

The square root of 1010020002 is about 31780.8118524370. The cubic root of 1010020002 is about 1003.3289067500.

Adding to 1010020002 its reverse (2000200101), we get a palindrome (3010220103).

The spelling of 1010020002 in words is "one billion, ten million, twenty thousand, two".