20442141312 has 32 divisors (see below), whose sum is σ = 54299438880. Its totient is φ = 6814046976.

The previous prime is 20442141281. The next prime is 20442141337. The reversal of 20442141312 is 21314124402.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×20442141312² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 26616988 + ... + 26617755.

It is an arithmetic number, because the mean of its divisors is an integer number (1696857465).

Almost surely, 2^20442141312 is an apocalyptic number.

It is an amenable number.

20442141312 is an abundant number, since it is smaller than the sum of its proper divisors (33857297568).

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

20442141312 is an equidigital number, since it uses as much as digits as its factorization.

20442141312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53234760 (or 53234748 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 20442141312 its reverse (21314124402), we get a palindrome (41756265714).

The spelling of 20442141312 in words is "twenty billion, four hundred forty-two million, one hundred forty-one thousand, three hundred twelve".