23211332113 has 2 divisors, whose sum is σ = 23211332114. Its totient is φ = 23211332112.

The previous prime is 23211332099. The next prime is 23211332129. The reversal of 23211332113 is 31123311232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17537175184 + 5674156929 = 132428^2 + 75327^2 .

It is a cyclic number.

It is not a de Polignac number, because 23211332113 - 2¹³ = 23211323921 is a prime.

It is not a weakly prime, because it can be changed into another prime (23211332513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11605666056 + 11605666057.

It is an arithmetic number, because the mean of its divisors is an integer number (11605666057).

Almost surely, 2^23211332113 is an apocalyptic number.

It is an amenable number.

23211332113 is a deficient number, since it is larger than the sum of its proper divisors (1).

23211332113 is an equidigital number, since it uses as much as digits as its factorization.

23211332113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 22.

Adding to 23211332113 its reverse (31123311232), we get a palindrome (54334643345).

The spelling of 23211332113 in words is "twenty-three billion, two hundred eleven million, three hundred thirty-two thousand, one hundred thirteen".