20323122142 has 8 divisors (see below), whose sum is σ = 30488679216. Its totient is φ = 10160229072.

The previous prime is 20323122137. The next prime is 20323122151. The reversal of 20323122142 is 24122132302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 646818 + ... + 677509.

It is an arithmetic number, because the mean of its divisors is an integer number (3811084902).

Almost surely, 2^20323122142 is an apocalyptic number.

20323122142 is a deficient number, since it is larger than the sum of its proper divisors (10165557074).

20323122142 is a wasteful number, since it uses less digits than its factorization.

20323122142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1332002.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 20323122142 its reverse (24122132302), we get a palindrome (44445254444).

The spelling of 20323122142 in words is "twenty billion, three hundred twenty-three million, one hundred twenty-two thousand, one hundred forty-two".