20012010102 has 48 divisors (see below), whose sum is σ = 49813051392. Its totient is φ = 5687774640.

The previous prime is 20012010061. The next prime is 20012010113. The reversal of 20012010102 is 20101021002.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 391708 + ... + 439839.

It is an arithmetic number, because the mean of its divisors is an integer number (1037771904).

Almost surely, 2^20012010102 is an apocalyptic number.

20012010102 is an abundant number, since it is smaller than the sum of its proper divisors (29801041290).

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

20012010102 is a wasteful number, since it uses less digits than its factorization.

20012010102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831753 (or 831750 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 20012010102 its reverse (20101021002), we get a palindrome (40113031104).

The spelling of 20012010102 in words is "twenty billion, twelve million, ten thousand, one hundred two".