101020002 has 16 divisors (see below), whose sum is σ = 210824640. Its totient is φ = 32209232.

The previous prime is 101019959. The next prime is 101020009. The reversal of 101020002 is 200020101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is not an unprimeable number, because it can be changed into a prime (101020009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365877 + ... + 366152.

It is an arithmetic number, because the mean of its divisors is an integer number (13176540).

Almost surely, 2^101020002 is an apocalyptic number.

101020002 is an abundant number, since it is smaller than the sum of its proper divisors (109804638).

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

101020002 is a wasteful number, since it uses less digits than its factorization.

101020002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732057.

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

The square root of 101020002 is about 10050.8707085506. The cubic root of 101020002 is about 465.7316911618.

Adding to 101020002 its reverse (200020101), we get a palindrome (301040103).

Subtracting 101020002 from its reverse (200020101), we obtain a palindrome (99000099).

It can be divided in two parts, 1010 and 20002, that added together give a palindrome (21012).

The spelling of 101020002 in words is "one hundred one million, twenty thousand, two".