123020323011 has 12 divisors (see below), whose sum is σ = 177707103600. Its totient is φ = 82008434160.

The previous prime is 123020322973. The next prime is 123020323021. The reversal of 123020323011 is 110323020321.

123020323011 is a `hidden beast` number, since 1 + 230 + 203 + 230 + 1 + 1 = 666.

It is not a de Polignac number, because 123020323011 - 2¹⁰ = 123020321987 is a prime.

It is a super-2 number, since 2×123020323011² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123020323021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 270895 + ... + 565176.

It is an arithmetic number, because the mean of its divisors is an integer number (14808925300).

Almost surely, 2^123020323011 is an apocalyptic number.

123020323011 is a deficient number, since it is larger than the sum of its proper divisors (54686780589).

123020323011 is a wasteful number, since it uses less digits than its factorization.

123020323011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852426 (or 852423 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 123020323011 its reverse (110323020321), we get a palindrome (233343343332).

The spelling of 123020323011 in words is "one hundred twenty-three billion, twenty million, three hundred twenty-three thousand, eleven".