213211100142 has 96 divisors (see below), whose sum is σ = 491773980672. Its totient is φ = 66667499712.

The previous prime is 213211100107. The next prime is 213211100213. The reversal of 213211100142 is 241001112312.

213211100142 is a `hidden beast` number, since 213 + 211 + 100 + 142 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2046403 + ... + 2148065.

It is an arithmetic number, because the mean of its divisors is an integer number (5122645632).

Almost surely, 2^213211100142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213211100142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245886990336).

213211100142 is an abundant number, since it is smaller than the sum of its proper divisors (278562880530).

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

213211100142 is a wasteful number, since it uses less digits than its factorization.

213211100142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101822 (or 101819 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 213211100142 its reverse (241001112312), we get a palindrome (454212212454).

The spelling of 213211100142 in words is "two hundred thirteen billion, two hundred eleven million, one hundred thousand, one hundred forty-two".