123130302013 has 4 divisors (see below), whose sum is σ = 123132130560. Its totient is φ = 123128473468.

The previous prime is 123130301897. The next prime is 123130302017. The reversal of 123130302013 is 310203031321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 310203031321 = 452077 ⋅686173.

It is a cyclic number.

It is not a de Polignac number, because 123130302013 - 2²¹ = 123128204861 is a prime.

It is a super-2 number, since 2×123130302013² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123130302017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 809245 + ... + 949282.

It is an arithmetic number, because the mean of its divisors is an integer number (30783032640).

Almost surely, 2^123130302013 is an apocalyptic number.

It is an amenable number.

123130302013 is a deficient number, since it is larger than the sum of its proper divisors (1828547).

123130302013 is an equidigital number, since it uses as much as digits as its factorization.

123130302013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1828546.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 123130302013 its reverse (310203031321), we get a palindrome (433333333334).

The spelling of 123130302013 in words is "one hundred twenty-three billion, one hundred thirty million, three hundred two thousand, thirteen".