20100010102 has 4 divisors (see below), whose sum is σ = 30150015156. Its totient is φ = 10050005050.

The previous prime is 20100010093. The next prime is 20100010123. The reversal of 20100010102 is 20101000102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20101000102 = 2 ⋅10050500051.

It is a super-2 number, since 2×20100010102² (a number of 21 digits) contains 22 as substring.

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 as a sum of consecutive naturals, namely, 5025002524 + ... + 5025002527.

It is an arithmetic number, because the mean of its divisors is an integer number (7537503789).

Almost surely, 2^20100010102 is an apocalyptic number.

20100010102 is a deficient number, since it is larger than the sum of its proper divisors (10050005054).

20100010102 is a wasteful number, since it uses less digits than its factorization.

20100010102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10050005053.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 20100010102 its reverse (20101000102), we get a palindrome (40201010204).

The spelling of 20100010102 in words is "twenty billion, one hundred million, ten thousand, one hundred two".