20144131040 has 48 divisors (see below), whose sum is σ = 51916924080. Its totient is φ = 7325137920.

The previous prime is 20144130989. The next prime is 20144131057. The reversal of 20144131040 is 4013144102.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5721005 + ... + 5724524.

It is an arithmetic number, because the mean of its divisors is an integer number (1081602585).

Almost surely, 2^20144131040 is an apocalyptic number.

20144131040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20144131040 is an abundant number, since it is smaller than the sum of its proper divisors (31772793040).

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

20144131040 is a wasteful number, since it uses less digits than its factorization.

20144131040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11445555 (or 11445547 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 20144131040 its reverse (4013144102), we get a palindrome (24157275142).

The spelling of 20144131040 in words is "twenty billion, one hundred forty-four million, one hundred thirty-one thousand, forty".