20311010122 has 8 divisors (see below), whose sum is σ = 32810093316. Its totient is φ = 9374312352.

The previous prime is 20311010107. The next prime is 20311010141. The reversal of 20311010122 is 22101011302.

It can be written as a sum of positive squares in 2 ways, for example, as 18416932681 + 1894077441 = 135709^2 + 43521^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (13).

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 3 ways as a sum of consecutive naturals, for example, 390596323 + ... + 390596374.

Almost surely, 2^20311010122 is an apocalyptic number.

20311010122 is a deficient number, since it is larger than the sum of its proper divisors (12499083194).

20311010122 is a wasteful number, since it uses less digits than its factorization.

20311010122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781192712.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 20311010122 its reverse (22101011302), we get a palindrome (42412021424).

The spelling of 20311010122 in words is "twenty billion, three hundred eleven million, ten thousand, one hundred twenty-two".