201126311000 has 64 divisors (see below), whose sum is σ = 471189307680. Its totient is φ = 80355868800.

The previous prime is 201126310997. The next prime is 201126311039. The reversal of 201126311000 is 113621102.

It is a self number, because there is not a number n which added to its sum of digits gives 201126311000.

It is a congruent number.

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, 735107 + ... + 970893.

Almost surely, 2^201126311000 is an apocalyptic number.

201126311000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201126311000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235594653840).

201126311000 is an abundant number, since it is smaller than the sum of its proper divisors (270062996680).

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

201126311000 is a wasteful number, since it uses less digits than its factorization.

201126311000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236661 (or 236647 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 201126311000 its reverse (113621102), we get a palindrome (201239932102).

The spelling of 201126311000 in words is "two hundred one billion, one hundred twenty-six million, three hundred eleven thousand".