213432023445 has 16 divisors (see below), whose sum is σ = 341546492160. Its totient is φ = 113811994304.

The previous prime is 213432023443. The next prime is 213432023461. The reversal of 213432023445 is 544320234312.

It is a cyclic number.

It is not a de Polignac number, because 213432023445 - 2¹ = 213432023443 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213432023443) 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, 1055085 + ... + 1240994.

It is an arithmetic number, because the mean of its divisors is an integer number (21346655760).

Almost surely, 2^213432023445 is an apocalyptic number.

It is an amenable number.

213432023445 is a deficient number, since it is larger than the sum of its proper divisors (128114468715).

213432023445 is a wasteful number, since it uses less digits than its factorization.

213432023445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2302284.

The product of its (nonzero) digits is 69120, while the sum is 33.

Adding to 213432023445 its reverse (544320234312), we get a palindrome (757752257757).

The spelling of 213432023445 in words is "two hundred thirteen billion, four hundred thirty-two million, twenty-three thousand, four hundred forty-five".