201311230100 has 72 divisors (see below), whose sum is σ = 467375815200. Its totient is φ = 75035721600.

The previous prime is 201311230097. The next prime is 201311230129. The reversal of 201311230100 is 1032113102.

It is a super-2 number, since 2×201311230100² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 752570 + ... + 984369.

Almost surely, 2^201311230100 is an apocalyptic number.

201311230100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201311230100 is an abundant number, since it is smaller than the sum of its proper divisors (266064585100).

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

201311230100 is a wasteful number, since it uses less digits than its factorization.

201311230100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1737033 (or 1737026 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 201311230100 its reverse (1032113102), we get a palindrome (202343343202).

The spelling of 201311230100 in words is "two hundred one billion, three hundred eleven million, two hundred thirty thousand, one hundred".