20000040102 has 64 divisors (see below), whose sum is σ = 50808015360. Its totient is φ = 5712692832.

The previous prime is 20000040101. The next prime is 20000040107. The reversal of 20000040102 is 20104000002.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000040101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2234428 + ... + 2243360.

It is an arithmetic number, because the mean of its divisors is an integer number (793875240).

Almost surely, 2^20000040102 is an apocalyptic number.

20000040102 is an abundant number, since it is smaller than the sum of its proper divisors (30807975258).

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

20000040102 is a wasteful number, since it uses less digits than its factorization.

20000040102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14874 (or 14868 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 20000040102 its reverse (20104000002), we get a palindrome (40104040104).

The spelling of 20000040102 in words is "twenty billion, forty thousand, one hundred two".