213502263111 has 24 divisors (see below), whose sum is σ = 321874587216. Its totient is φ = 136243186560.

The previous prime is 213502263089. The next prime is 213502263113. The reversal of 213502263111 is 111362205312.

213502263111 is a `hidden beast` number, since 2 + 1 + 3 + 5 + 0 + 22 + 631 + 1 + 1 = 666.

It is not a de Polignac number, because 213502263111 - 2⁹ = 213502262599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213502263113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5438905 + ... + 5478018.

It is an arithmetic number, because the mean of its divisors is an integer number (13411441134).

Almost surely, 2^213502263111 is an apocalyptic number.

213502263111 is a deficient number, since it is larger than the sum of its proper divisors (108372324105).

213502263111 is a wasteful number, since it uses less digits than its factorization.

213502263111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10917023 (or 10917020 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

Adding to 213502263111 its reverse (111362205312), we get a palindrome (324864468423).

The spelling of 213502263111 in words is "two hundred thirteen billion, five hundred two million, two hundred sixty-three thousand, one hundred eleven".