20122631873 has 8 divisors (see below), whose sum is σ = 20173229160. Its totient is φ = 20072085120.

The previous prime is 20122631839. The next prime is 20122631899. The reversal of 20122631873 is 37813622102.

It can be written as a sum of positive squares in 4 ways, for example, as 1537580944 + 18585050929 = 39212^2 + 136327^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 20122631873 - 2²² = 20118437569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20122631173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 858911 + ... + 882027.

It is an arithmetic number, because the mean of its divisors is an integer number (2521653645).

Almost surely, 2^20122631873 is an apocalyptic number.

It is an amenable number.

20122631873 is a deficient number, since it is larger than the sum of its proper divisors (50597287).

20122631873 is a wasteful number, since it uses less digits than its factorization.

20122631873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25267.

The product of its (nonzero) digits is 24192, while the sum is 35.

The spelling of 20122631873 in words is "twenty billion, one hundred twenty-two million, six hundred thirty-one thousand, eight hundred seventy-three".