213132322011 has 32 divisors (see below), whose sum is σ = 329694524928. Its totient is φ = 119945168640.

The previous prime is 213132321973. The next prime is 213132322019. The reversal of 213132322011 is 110223231312.

It is not a de Polignac number, because 213132322011 - 2⁹ = 213132321499 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (213132322019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7387831 + ... + 7416623.

It is an arithmetic number, because the mean of its divisors is an integer number (10302953904).

Almost surely, 2^213132322011 is an apocalyptic number.

213132322011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

213132322011 is a deficient number, since it is larger than the sum of its proper divisors (116562202917).

213132322011 is a wasteful number, since it uses less digits than its factorization.

213132322011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34131.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 213132322011 its reverse (110223231312), we get a palindrome (323355553323).

The spelling of 213132322011 in words is "two hundred thirteen billion, one hundred thirty-two million, three hundred twenty-two thousand, eleven".