1020002909210 has 16 divisors (see below), whose sum is σ = 1944005544936. Its totient is φ = 384001095168.

The previous prime is 1020002909207. The next prime is 1020002909239. The reversal of 1020002909210 is 129092000201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 942221603761 + 77781305449 = 970681^2 + 278893^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1020002909210.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3000008387 + ... + 3000008726.

Almost surely, 2^{1020002909210} is an apocalyptic number.

1020002909210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020002909210 is a deficient number, since it is larger than the sum of its proper divisors (924002635726).

1020002909210 is a wasteful number, since it uses less digits than its factorization.

1020002909210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6000017137.

The product of its (nonzero) digits is 648, while the sum is 26.

Adding to 1020002909210 its reverse (129092000201), we get a palindrome (1149094909411).

The spelling of 1020002909210 in words is "one trillion, twenty billion, two million, nine hundred nine thousand, two hundred ten".