213143411111100 has 72 divisors (see below), whose sum is σ = 617109104624880. Its totient is φ = 56800070753280.

The previous prime is 213143411111087. The next prime is 213143411111179. The reversal of 213143411111100 is 1111114341312.

It is a super-2 number, since 2×213143411111100² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 238128867 + ... + 239022266.

Almost surely, 2^{213143411111100} is an apocalyptic number.

213143411111100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213143411111100 is an abundant number, since it is smaller than the sum of its proper divisors (403965693513780).

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

213143411111100 is a wasteful number, since it uses less digits than its factorization.

213143411111100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477152639 (or 477152632 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 24.

Adding to 213143411111100 its reverse (1111114341312), we get a palindrome (214254525452412).

The spelling of 213143411111100 in words is "two hundred thirteen trillion, one hundred forty-three billion, four hundred eleven million, one hundred eleven thousand, one hundred".