123023201011 has 32 divisors (see below), whose sum is σ = 134033356800. Its totient is φ = 112486133760.

The previous prime is 123023200999. The next prime is 123023201027. The reversal of 123023201011 is 110102320321.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123023201011 is a prime.

It is a super-2 number, since 2×123023201011² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123023201071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65125155 + ... + 65127043.

It is an arithmetic number, because the mean of its divisors is an integer number (4188542400).

Almost surely, 2^123023201011 is an apocalyptic number.

123023201011 is a deficient number, since it is larger than the sum of its proper divisors (11010155789).

123023201011 is a wasteful number, since it uses less digits than its factorization.

123023201011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2739.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 123023201011 its reverse (110102320321), we get a palindrome (233125521332).

The spelling of 123023201011 in words is "one hundred twenty-three billion, twenty-three million, two hundred one thousand, eleven".