213111424140 has 192 divisors, whose sum is σ = 628011546624. Its totient is φ = 53932925952.

The previous prime is 213111424109. The next prime is 213111424153. The reversal of 213111424140 is 41424111312.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 213111424140.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 32029054 + ... + 32035706.

It is an arithmetic number, because the mean of its divisors is an integer number (3270893472).

Almost surely, 2^213111424140 is an apocalyptic number.

213111424140 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 213111424140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314005773312).

213111424140 is an abundant number, since it is smaller than the sum of its proper divisors (414900122484).

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

213111424140 is a wasteful number, since it uses less digits than its factorization.

213111424140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7056 (or 7054 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 213111424140 its reverse (41424111312), we get a palindrome (254535535452).

The spelling of 213111424140 in words is "two hundred thirteen billion, one hundred eleven million, four hundred twenty-four thousand, one hundred forty".