20201103133240 has 32 divisors (see below), whose sum is σ = 47428676923680. Its totient is φ = 7729117720192.

The previous prime is 20201103133231. The next prime is 20201103133241. The reversal of 20201103133240 is 4233130110202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201103133241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10978859479 + ... + 10978861318.

It is an arithmetic number, because the mean of its divisors is an integer number (1482146153865).

Almost surely, 2^{20201103133240} is an apocalyptic number.

20201103133240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20201103133240 is an abundant number, since it is smaller than the sum of its proper divisors (27227573790440).

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

20201103133240 is a wasteful number, since it uses less digits than its factorization.

20201103133240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21957720831 (or 21957720827 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 20201103133240 its reverse (4233130110202), we get a palindrome (24434233243442).

The spelling of 20201103133240 in words is "twenty trillion, two hundred one billion, one hundred three million, one hundred thirty-three thousand, two hundred forty".