213431513532 has 24 divisors (see below), whose sum is σ = 501304927872. Its totient is φ = 70672686000.

The previous prime is 213431513513. The next prime is 213431513539. The reversal of 213431513532 is 235315134312.

It is a junction number, because it is equal to n+sod(n) for n = 213431513493 and 213431513502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213431513539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58892094 + ... + 58895717.

It is an arithmetic number, because the mean of its divisors is an integer number (20887705328).

Almost surely, 2^213431513532 is an apocalyptic number.

It is an amenable number.

213431513532 is an abundant number, since it is smaller than the sum of its proper divisors (287873414340).

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

213431513532 is a wasteful number, since it uses less digits than its factorization.

213431513532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117787969 (or 117787967 counting only the distinct ones).

The product of its digits is 32400, while the sum is 33.

Adding to 213431513532 its reverse (235315134312), we get a palindrome (448746647844).

The spelling of 213431513532 in words is "two hundred thirteen billion, four hundred thirty-one million, five hundred thirteen thousand, five hundred thirty-two".