23121427413 has 32 divisors (see below), whose sum is σ = 35428728832. Its totient is φ = 13138848000.

The previous prime is 23121427409. The next prime is 23121427421. The reversal of 23121427413 is 31472412132.

It is not a de Polignac number, because 23121427413 - 2² = 23121427409 is a prime.

It is a super-2 number, since 2×23121427413² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23121427403) 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 31 ways as a sum of consecutive naturals, for example, 5622228 + ... + 5626338.

It is an arithmetic number, because the mean of its divisors is an integer number (1107147776).

Almost surely, 2^23121427413 is an apocalyptic number.

It is an amenable number.

23121427413 is a deficient number, since it is larger than the sum of its proper divisors (12307301419).

23121427413 is a wasteful number, since it uses less digits than its factorization.

23121427413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5545.

The product of its digits is 8064, while the sum is 30.

Adding to 23121427413 its reverse (31472412132), we get a palindrome (54593839545).

The spelling of 23121427413 in words is "twenty-three billion, one hundred twenty-one million, four hundred twenty-seven thousand, four hundred thirteen".