123022131011 has 4 divisors (see below), whose sum is σ = 132485371872. Its totient is φ = 113558890152.

The previous prime is 123022130977. The next prime is 123022131049. The reversal of 123022131011 is 110131220321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123022131011 - 2¹⁴ = 123022114627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123022131511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4731620411 + ... + 4731620436.

It is an arithmetic number, because the mean of its divisors is an integer number (33121342968).

Almost surely, 2^123022131011 is an apocalyptic number.

123022131011 is a deficient number, since it is larger than the sum of its proper divisors (9463240861).

123022131011 is an equidigital number, since it uses as much as digits as its factorization.

123022131011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9463240860.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 123022131011 its reverse (110131220321), we get a palindrome (233153351332).

The spelling of 123022131011 in words is "one hundred twenty-three billion, twenty-two million, one hundred thirty-one thousand, eleven".