123345305061 has 16 divisors (see below), whose sum is σ = 179440004160. Its totient is φ = 74742792320.

The previous prime is 123345305023. The next prime is 123345305089. The reversal of 123345305061 is 160503543321.

It is a cyclic number.

It is not a de Polignac number, because 123345305061 - 2¹⁵ = 123345272293 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123345505061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86430 + ... + 504143.

It is an arithmetic number, because the mean of its divisors is an integer number (11215000260).

Almost surely, 2^123345305061 is an apocalyptic number.

123345305061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

123345305061 is a deficient number, since it is larger than the sum of its proper divisors (56094699099).

123345305061 is a wasteful number, since it uses less digits than its factorization.

123345305061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596916.

The product of its (nonzero) digits is 32400, while the sum is 33.

Adding to 123345305061 its reverse (160503543321), we get a palindrome (283848848382).

The spelling of 123345305061 in words is "one hundred twenty-three billion, three hundred forty-five million, three hundred five thousand, sixty-one".