20131113050 has 48 divisors (see below), whose sum is σ = 37825412352. Its totient is φ = 7970788800.

The previous prime is 20131113049. The next prime is 20131113053. The reversal of 20131113050 is 5031113102.

It is not an unprimeable number, because it can be changed into a prime (20131113053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2122619 + ... + 2132081.

It is an arithmetic number, because the mean of its divisors is an integer number (788029424).

Almost surely, 2^20131113050 is an apocalyptic number.

20131113050 is a deficient number, since it is larger than the sum of its proper divisors (17694299302).

20131113050 is a wasteful number, since it uses less digits than its factorization.

20131113050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9903 (or 9898 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 17.

Adding to 20131113050 its reverse (5031113102), we get a palindrome (25162226152).

The spelling of 20131113050 in words is "twenty billion, one hundred thirty-one million, one hundred thirteen thousand, fifty".