1101232120231 has 2 divisors, whose sum is σ = 1101232120232. Its totient is φ = 1101232120230.

The previous prime is 1101232120207. The next prime is 1101232120259. The reversal of 1101232120231 is 1320212321011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1101232120231 - 2⁷ = 1101232120103 is a prime.

It is a super-2 number, since 2×1101232120231² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1101232120199 and 1101232120208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1101232120531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550616060115 + 550616060116.

It is an arithmetic number, because the mean of its divisors is an integer number (550616060116).

Almost surely, 2^{1101232120231} is an apocalyptic number.

1101232120231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101232120231 is an equidigital number, since it uses as much as digits as its factorization.

1101232120231 is an evil number, because the sum of its binary digits is even.

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

Adding to 1101232120231 its reverse (1320212321011), we get a palindrome (2421444441242).

The spelling of 1101232120231 in words is "one trillion, one hundred one billion, two hundred thirty-two million, one hundred twenty thousand, two hundred thirty-one".