123101013 has 16 divisors (see below), whose sum is σ = 188375040. Its totient is φ = 70046256.

The previous prime is 123101009. The next prime is 123101047. The reversal of 123101013 is 310101321.

It is not a de Polignac number, because 123101013 - 2² = 123101009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123101013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123101813) 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 15 ways as a sum of consecutive naturals, for example, 7245 + ... + 17282.

It is an arithmetic number, because the mean of its divisors is an integer number (11773440).

Almost surely, 2^123101013 is an apocalyptic number.

It is an amenable number.

123101013 is a deficient number, since it is larger than the sum of its proper divisors (65274027).

123101013 is a wasteful number, since it uses less digits than its factorization.

123101013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24776.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 123101013 is about 11095.0895895437. The cubic root of 123101013 is about 497.4550861367.

Adding to 123101013 its reverse (310101321), we get a palindrome (433202334).

The spelling of 123101013 in words is "one hundred twenty-three million, one hundred one thousand, thirteen".