201011545100 has 18 divisors (see below), whose sum is σ = 436195053084. Its totient is φ = 80404618000.

The previous prime is 201011545087. The next prime is 201011545123. The reversal of 201011545100 is 1545110102.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1005057626 + ... + 1005057825.

Almost surely, 2^201011545100 is an apocalyptic number.

201011545100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201011545100 is an abundant number, since it is smaller than the sum of its proper divisors (235183507984).

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

201011545100 is a wasteful number, since it uses less digits than its factorization.

201011545100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2010115465 (or 2010115458 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 20.

Adding to 201011545100 its reverse (1545110102), we get a palindrome (202556655202).

The spelling of 201011545100 in words is "two hundred one billion, eleven million, five hundred forty-five thousand, one hundred".