20123124102 has 48 divisors (see below), whose sum is σ = 44206456320. Its totient is φ = 6614822016.

The previous prime is 20123124071. The next prime is 20123124127. The reversal of 20123124102 is 20142132102.

It is a happy number.

20123124102 is a `hidden beast` number, since 20 + 1 + 231 + 2 + 410 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 597168 + ... + 629964.

It is an arithmetic number, because the mean of its divisors is an integer number (920967840).

Almost surely, 2^20123124102 is an apocalyptic number.

20123124102 is an abundant number, since it is smaller than the sum of its proper divisors (24083332218).

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

20123124102 is a wasteful number, since it uses less digits than its factorization.

20123124102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33277 (or 33274 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 20123124102 its reverse (20142132102), we get a palindrome (40265256204).

The spelling of 20123124102 in words is "twenty billion, one hundred twenty-three million, one hundred twenty-four thousand, one hundred two".