123101013165 has 32 divisors (see below), whose sum is σ = 212150628480. Its totient is φ = 60592686336.

The previous prime is 123101013163. The next prime is 123101013181. The reversal of 123101013165 is 561310101321.

It is not a de Polignac number, because 123101013165 - 2¹ = 123101013163 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123101013163) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1090674 + ... + 1198236.

It is an arithmetic number, because the mean of its divisors is an integer number (6629707140).

Almost surely, 2^123101013165 is an apocalyptic number.

123101013165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123101013165 is a deficient number, since it is larger than the sum of its proper divisors (89049615315).

123101013165 is a wasteful number, since it uses less digits than its factorization.

123101013165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113453.

The product of its (nonzero) digits is 540, while the sum is 24.

Adding to 123101013165 its reverse (561310101321), we get a palindrome (684411114486).

It can be divided in two parts, 12310101316 and 5, that added together give a palindrome (12310101321).

The spelling of 123101013165 in words is "one hundred twenty-three billion, one hundred one million, thirteen thousand, one hundred sixty-five".