20131055000 has 80 divisors (see below), whose sum is σ = 53905307280. Its totient is φ = 6902064000.

The previous prime is 20131054963. The next prime is 20131055011. The reversal of 20131055000 is 55013102.

It is a self number, because there is not a number n which added to its sum of digits gives 20131055000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 252587 + ... + 322586.

It is an arithmetic number, because the mean of its divisors is an integer number (673816341).

Almost surely, 2^20131055000 is an apocalyptic number.

20131055000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20131055000 is an abundant number, since it is smaller than the sum of its proper divisors (33774252280).

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

20131055000 is an equidigital number, since it uses as much as digits as its factorization.

20131055000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575206 (or 575187 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 17.

Adding to 20131055000 its reverse (55013102), we get a palindrome (20186068102).

The spelling of 20131055000 in words is "twenty billion, one hundred thirty-one million, fifty-five thousand".