23212132111 has 16 divisors (see below), whose sum is σ = 26939946240. Its totient is φ = 19587617280.

The previous prime is 23212132109. The next prime is 23212132159. The reversal of 23212132111 is 11123121232.

It is not a de Polignac number, because 23212132111 - 2¹ = 23212132109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23212132511) 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, 835695 + ... + 863023.

It is an arithmetic number, because the mean of its divisors is an integer number (1683746640).

Almost surely, 2^23212132111 is an apocalyptic number.

23212132111 is a deficient number, since it is larger than the sum of its proper divisors (3727814129).

23212132111 is a wasteful number, since it uses less digits than its factorization.

23212132111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29214.

The product of its digits is 144, while the sum is 19.

Adding to 23212132111 its reverse (11123121232), we get a palindrome (34335253343).

The spelling of 23212132111 in words is "twenty-three billion, two hundred twelve million, one hundred thirty-two thousand, one hundred eleven".