213001131444 has 24 divisors (see below), whose sum is σ = 497153293728. Its totient is φ = 70978855200.

The previous prime is 213001131439. The next prime is 213001131481. The reversal of 213001131444 is 444131100312.

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, 2648982 + ... + 2728205.

It is an arithmetic number, because the mean of its divisors is an integer number (20714720572).

Almost surely, 2^213001131444 is an apocalyptic number.

It is an amenable number.

213001131444 is an abundant number, since it is smaller than the sum of its proper divisors (284152162284).

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

213001131444 is a wasteful number, since it uses less digits than its factorization.

213001131444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5380495 (or 5380493 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 213001131444 its reverse (444131100312), we get a palindrome (657132231756).

The spelling of 213001131444 in words is "two hundred thirteen billion, one million, one hundred thirty-one thousand, four hundred forty-four".