20311444422 has 24 divisors (see below), whose sum is σ = 44627965200. Its totient is φ = 6675122160.

The previous prime is 20311444393. The next prime is 20311444457. The reversal of 20311444422 is 22444411302.

20311444422 is a `hidden beast` number, since 203 + 1 + 14 + 4 + 442 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7945297 + ... + 7947852.

It is an arithmetic number, because the mean of its divisors is an integer number (1859498550).

Almost surely, 2^20311444422 is an apocalyptic number.

20311444422 is an abundant number, since it is smaller than the sum of its proper divisors (24316520778).

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

20311444422 is a wasteful number, since it uses less digits than its factorization.

20311444422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15893228 (or 15893225 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 20311444422 its reverse (22444411302), we get a palindrome (42755855724).

The spelling of 20311444422 in words is "twenty billion, three hundred eleven million, four hundred forty-four thousand, four hundred twenty-two".