23121000022013 has 16 divisors (see below), whose sum is σ = 23345630616000. Its totient is φ = 22896600988032.

The previous prime is 23121000021971. The next prime is 23121000022031. The reversal of 23121000022013 is 31022000012132.

It is a cyclic number.

It is not a de Polignac number, because 23121000022013 - 2²⁶ = 23120932913149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23121000021982 and 23121000022000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23121000022073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2938981706 + ... + 2938989572.

It is an arithmetic number, because the mean of its divisors is an integer number (1459101913500).

Almost surely, 2^{23121000022013} is an apocalyptic number.

It is an amenable number.

23121000022013 is a deficient number, since it is larger than the sum of its proper divisors (224630593987).

23121000022013 is a wasteful number, since it uses less digits than its factorization.

23121000022013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19004.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 23121000022013 its reverse (31022000012132), we get a palindrome (54143000034145).

The spelling of 23121000022013 in words is "twenty-three trillion, one hundred twenty-one billion, twenty-two thousand, thirteen".