123445011113 has 4 divisors (see below), whose sum is σ = 123480806100. Its totient is φ = 123409216128.

The previous prime is 123445011091. The next prime is 123445011149. The reversal of 123445011113 is 311110544321.

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

It can be written as a sum of positive squares in 2 ways, for example, as 60382249984 + 63062761129 = 245728^2 + 251123^2 .

It is a cyclic number.

It is not a de Polignac number, because 123445011113 - 2¹⁰ = 123445010089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123445013113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17892320 + ... + 17899217.

It is an arithmetic number, because the mean of its divisors is an integer number (30870201525).

Almost surely, 2^123445011113 is an apocalyptic number.

It is an amenable number.

123445011113 is a deficient number, since it is larger than the sum of its proper divisors (35794987).

123445011113 is an equidigital number, since it uses as much as digits as its factorization.

123445011113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35794986.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 123445011113 its reverse (311110544321), we get a palindrome (434555555434).

The spelling of 123445011113 in words is "one hundred twenty-three billion, four hundred forty-five million, eleven thousand, one hundred thirteen".