20133303140 has 12 divisors (see below), whose sum is σ = 42279936636. Its totient is φ = 8053321248.

The previous prime is 20133303137. The next prime is 20133303149. The reversal of 20133303140 is 4130333102.

It can be written as a sum of positive squares in 2 ways, for example, as 7519317796 + 12613985344 = 86714^2 + 112312^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 1006665157 = 20133303140 / (2 + 0 + 1 + 3 + 3 + 3 + 0 + 3 + 1 + 4 + 0).

It is not an unprimeable number, because it can be changed into a prime (20133303149) 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, 503332559 + ... + 503332598.

It is an arithmetic number, because the mean of its divisors is an integer number (3523328053).

Almost surely, 2^20133303140 is an apocalyptic number.

20133303140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20133303140 is an abundant number, since it is smaller than the sum of its proper divisors (22146633496).

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

20133303140 is a wasteful number, since it uses less digits than its factorization.

20133303140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006665166 (or 1006665164 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20133303140 its reverse (4130333102), we get a palindrome (24263636242).

The spelling of 20133303140 in words is "twenty billion, one hundred thirty-three million, three hundred three thousand, one hundred forty".