213155441430 has 16 divisors (see below), whose sum is σ = 511573059504. Its totient is φ = 56841451040.

The previous prime is 213155441423. The next prime is 213155441453. The reversal of 213155441430 is 34144551312.

It is a super-2 number, since 2×213155441430² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213155441391 and 213155441400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3552590661 + ... + 3552590720.

It is an arithmetic number, because the mean of its divisors is an integer number (31973316219).

Almost surely, 2^213155441430 is an apocalyptic number.

213155441430 is an abundant number, since it is smaller than the sum of its proper divisors (298417618074).

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

213155441430 is a wasteful number, since it uses less digits than its factorization.

213155441430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7105181391.

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 213155441430 its reverse (34144551312), we get a palindrome (247299992742).

The spelling of 213155441430 in words is "two hundred thirteen billion, one hundred fifty-five million, four hundred forty-one thousand, four hundred thirty".