20031133124240 has 40 divisors (see below), whose sum is σ = 53225582303040. Its totient is φ = 6867817070976.

The previous prime is 20031133124239. The next prime is 20031133124251. The reversal of 20031133124240 is 4242133113002.

It is a tau number, because it is divible by the number of its divisors (40).

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, 17884939730 + ... + 17884940849.

It is an arithmetic number, because the mean of its divisors is an integer number (1330639557576).

Almost surely, 2^{20031133124240} is an apocalyptic number.

20031133124240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20031133124240 is an abundant number, since it is smaller than the sum of its proper divisors (33194449178800).

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

20031133124240 is a wasteful number, since it uses less digits than its factorization.

20031133124240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35769880599 (or 35769880593 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 20031133124240 its reverse (4242133113002), we get a palindrome (24273266237242).

The spelling of 20031133124240 in words is "twenty trillion, thirty-one billion, one hundred thirty-three million, one hundred twenty-four thousand, two hundred forty".