20301400144 has 10 divisors (see below), whose sum is σ = 39333962810. Its totient is φ = 10150700064.

The previous prime is 20301400139. The next prime is 20301400159. The reversal of 20301400144 is 44100410302.

It can be written as a sum of positive squares in only one way, i.e., 13839169600 + 6462230544 = 117640^2 + 80388^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 634418739 + ... + 634418770.

It is an arithmetic number, because the mean of its divisors is an integer number (3933396281).

Almost surely, 2^20301400144 is an apocalyptic number.

It is an amenable number.

20301400144 is a deficient number, since it is larger than the sum of its proper divisors (19032562666).

20301400144 is a wasteful number, since it uses less digits than its factorization.

20301400144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1268837517 (or 1268837511 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 20301400144 its reverse (44100410302), we get a palindrome (64401810446).

The spelling of 20301400144 in words is "twenty billion, three hundred one million, four hundred thousand, one hundred forty-four".