20111331130 has 32 divisors (see below), whose sum is σ = 40558682880. Its totient is φ = 7115555520.

The previous prime is 20111331113. The next prime is 20111331181. The reversal of 20111331130 is 3113311102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2466610 + ... + 2474749.

It is an arithmetic number, because the mean of its divisors is an integer number (1267458840).

Almost surely, 2^20111331130 is an apocalyptic number.

20111331130 is an abundant number, since it is smaller than the sum of its proper divisors (20447351750).

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

20111331130 is a wasteful number, since it uses less digits than its factorization.

20111331130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4941414.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 20111331130 its reverse (3113311102), we get a palindrome (23224642232).

The spelling of 20111331130 in words is "twenty billion, one hundred eleven million, three hundred thirty-one thousand, one hundred thirty".