123330011231 has 16 divisors (see below), whose sum is σ = 149249802240. Its totient is φ = 99486368640.

The previous prime is 123330011221. The next prime is 123330011263. The reversal of 123330011231 is 132110033321.

It is a cyclic number.

It is not a de Polignac number, because 123330011231 - 2¹⁸ = 123329749087 is a prime.

It is a super-2 number, since 2×123330011231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123330011221) 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 15 ways as a sum of consecutive naturals, for example, 2478050 + ... + 2527328.

It is an arithmetic number, because the mean of its divisors is an integer number (9328112640).

Almost surely, 2^123330011231 is an apocalyptic number.

123330011231 is a deficient number, since it is larger than the sum of its proper divisors (25919791009).

123330011231 is a wasteful number, since it uses less digits than its factorization.

123330011231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70334.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 123330011231 its reverse (132110033321), we get a palindrome (255440044552).

The spelling of 123330011231 in words is "one hundred twenty-three billion, three hundred thirty million, eleven thousand, two hundred thirty-one".