123112301011 has 24 divisors (see below), whose sum is σ = 148926608640. Its totient is φ = 101352384000.

The previous prime is 123112300979. The next prime is 123112301017. The reversal of 123112301011 is 110103211321.

It is a happy number.

It is not a de Polignac number, because 123112301011 - 2⁵ = 123112300979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123112301017) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44611 + ... + 498211.

It is an arithmetic number, because the mean of its divisors is an integer number (6205275360).

Almost surely, 2^123112301011 is an apocalyptic number.

123112301011 is a deficient number, since it is larger than the sum of its proper divisors (25814307629).

123112301011 is a wasteful number, since it uses less digits than its factorization.

123112301011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453835 (or 453828 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 123112301011 its reverse (110103211321), we get a palindrome (233215512332).

The spelling of 123112301011 in words is "one hundred twenty-three billion, one hundred twelve million, three hundred one thousand, eleven".