213253521432 has 64 divisors (see below), whose sum is σ = 610196094720. Its totient is φ = 60839545728.

The previous prime is 213253521427. The next prime is 213253521433. The reversal of 213253521432 is 234125352312.

It is a junction number, because it is equal to n+sod(n) for n = 213253521393 and 213253521402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213253521433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 823758 + ... + 1051229.

It is an arithmetic number, because the mean of its divisors is an integer number (9534313980).

Almost surely, 2^213253521432 is an apocalyptic number.

It is an amenable number.

213253521432 is an abundant number, since it is smaller than the sum of its proper divisors (396942573288).

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

213253521432 is a wasteful number, since it uses less digits than its factorization.

213253521432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1875680 (or 1875676 counting only the distinct ones).

The product of its digits is 43200, while the sum is 33.

Adding to 213253521432 its reverse (234125352312), we get a palindrome (447378873744).

The spelling of 213253521432 in words is "two hundred thirteen billion, two hundred fifty-three million, five hundred twenty-one thousand, four hundred thirty-two".