23040121421443 has 32 divisors (see below), whose sum is σ = 27577156239360. Its totient is φ = 18832710677760.

The previous prime is 23040121421437. The next prime is 23040121421497. The reversal of 23040121421443 is 34412412104032.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-23040121421443 is a prime.

It is a super-2 number, since 2×23040121421443² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23040121421243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3745383 + ... + 7752943.

It is an arithmetic number, because the mean of its divisors is an integer number (861786132480).

Almost surely, 2^{23040121421443} is an apocalyptic number.

23040121421443 is a deficient number, since it is larger than the sum of its proper divisors (4537034817917).

23040121421443 is a wasteful number, since it uses less digits than its factorization.

23040121421443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4007947.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 23040121421443 its reverse (34412412104032), we get a palindrome (57452533525475).

The spelling of 23040121421443 in words is "twenty-three trillion, forty billion, one hundred twenty-one million, four hundred twenty-one thousand, four hundred forty-three".