23012140043421 has 12 divisors (see below), whose sum is σ = 33363325717020. Its totient is φ = 15284395368000.

The previous prime is 23012140043351. The next prime is 23012140043447. The reversal of 23012140043421 is 12434004121032.

23012140043421 is a `hidden beast` number, since 2 + 301 + 2 + 14 + 0 + 0 + 4 + 342 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5988841678521 + 17023298364900 = 2447211^2 + 4125930^2 .

It is not a de Polignac number, because 23012140043421 - 2¹⁹ = 23012139519133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23012140043461) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4752608080 + ... + 4752612921.

It is an arithmetic number, because the mean of its divisors is an integer number (2780277143085).

Almost surely, 2^{23012140043421} is an apocalyptic number.

It is an amenable number.

23012140043421 is a deficient number, since it is larger than the sum of its proper divisors (10351185673599).

23012140043421 is a wasteful number, since it uses less digits than its factorization.

23012140043421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9505221276 (or 9505221273 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 23012140043421 its reverse (12434004121032), we get a palindrome (35446144164453).

The spelling of 23012140043421 in words is "twenty-three trillion, twelve billion, one hundred forty million, forty-three thousand, four hundred twenty-one".