20323142102 has 24 divisors (see below), whose sum is σ = 33545046360. Its totient is φ = 9208188000.

The previous prime is 20323142089. The next prime is 20323142141. The reversal of 20323142102 is 20124132302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 485399 + ... + 525602.

It is an arithmetic number, because the mean of its divisors is an integer number (1397710265).

Almost surely, 2^20323142102 is an apocalyptic number.

20323142102 is a deficient number, since it is larger than the sum of its proper divisors (13221904258).

20323142102 is a wasteful number, since it uses less digits than its factorization.

20323142102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011068 (or 1011045 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20323142102 its reverse (20124132302), we get a palindrome (40447274404).

The spelling of 20323142102 in words is "twenty billion, three hundred twenty-three million, one hundred forty-two thousand, one hundred two".