20311444122042 has 32 divisors (see below), whose sum is σ = 42187193841600. Its totient is φ = 6511580622848.

The previous prime is 20311444121999. The next prime is 20311444122043. The reversal of 20311444122042 is 24022144411302.

It is not an unprimeable number, because it can be changed into a prime (20311444122043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227061192 + ... + 227150627.

It is an arithmetic number, because the mean of its divisors is an integer number (1318349807550).

Almost surely, 2^{20311444122042} is an apocalyptic number.

20311444122042 is an abundant number, since it is smaller than the sum of its proper divisors (21875749719558).

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

20311444122042 is a wasteful number, since it uses less digits than its factorization.

20311444122042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454212110.

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 20311444122042 its reverse (24022144411302), we get a palindrome (44333588533344).

The spelling of 20311444122042 in words is "twenty trillion, three hundred eleven billion, four hundred forty-four million, one hundred twenty-two thousand, forty-two".