23040012000421 has 8 divisors (see below), whose sum is σ = 25219079971064. Its totient is φ = 20919052509120.

The previous prime is 23040012000413. The next prime is 23040012000449. The reversal of 23040012000421 is 12400021004032.

It can be written as a sum of positive squares in 4 ways, for example, as 163745669025 + 22876266331396 = 404655^2 + 4782914^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23040012000421 - 2³ = 23040012000413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23040012000451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14527119006 + ... + 14527120591.

It is an arithmetic number, because the mean of its divisors is an integer number (3152384996383).

Almost surely, 2^{23040012000421} is an apocalyptic number.

It is an amenable number.

23040012000421 is a deficient number, since it is larger than the sum of its proper divisors (2179067970643).

23040012000421 is a wasteful number, since it uses less digits than its factorization.

23040012000421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29054239671.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 23040012000421 its reverse (12400021004032), we get a palindrome (35440033004453).

The spelling of 23040012000421 in words is "twenty-three trillion, forty billion, twelve million, four hundred twenty-one", and thus it is an aban number.