213022023455 has 16 divisors (see below), whose sum is σ = 271692894720. Its totient is φ = 159880804128.

The previous prime is 213022023443. The next prime is 213022023479. The reversal of 213022023455 is 554320220312.

It is a cyclic number.

It is not a de Polignac number, because 213022023455 - 2¹⁴ = 213022007071 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10875347 + ... + 10894916.

It is an arithmetic number, because the mean of its divisors is an integer number (16980805920).

Almost surely, 2^213022023455 is an apocalyptic number.

213022023455 is a deficient number, since it is larger than the sum of its proper divisors (58670871265).

213022023455 is a wasteful number, since it uses less digits than its factorization.

213022023455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21770390.

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 213022023455 its reverse (554320220312), we get a palindrome (767342243767).

The spelling of 213022023455 in words is "two hundred thirteen billion, twenty-two million, twenty-three thousand, four hundred fifty-five".