20301332144 has 20 divisors (see below), whose sum is σ = 40690170960. Its totient is φ = 9800642880.

The previous prime is 20301332113. The next prime is 20301332147. The reversal of 20301332144 is 44123310302.

It is not an unprimeable number, because it can be changed into a prime (20301332147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21875972 + ... + 21876899.

It is an arithmetic number, because the mean of its divisors is an integer number (2034508548).

Almost surely, 2^20301332144 is an apocalyptic number.

It is an amenable number.

20301332144 is an abundant number, since it is smaller than the sum of its proper divisors (20388838816).

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

20301332144 is a wasteful number, since it uses less digits than its factorization.

20301332144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43752908 (or 43752902 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 20301332144 its reverse (44123310302), we get a palindrome (64424642446).

The spelling of 20301332144 in words is "twenty billion, three hundred one million, three hundred thirty-two thousand, one hundred forty-four".