23121034210143 has 6 divisors (see below), whose sum is σ = 33397049414664. Its totient is φ = 15414022806756.

The previous prime is 23121034210123. The next prime is 23121034210229. The reversal of 23121034210143 is 34101243012132.

23121034210143 is a `hidden beast` number, since 2 + 3 + 1 + 210 + 342 + 101 + 4 + 3 = 666.

It is not a de Polignac number, because 23121034210143 - 2⁸ = 23121034209887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23121034210123) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1284501900555 + ... + 1284501900572.

It is an arithmetic number, because the mean of its divisors is an integer number (5566174902444).

Almost surely, 2^{23121034210143} is an apocalyptic number.

23121034210143 is a deficient number, since it is larger than the sum of its proper divisors (10276015204521).

23121034210143 is a wasteful number, since it uses less digits than its factorization.

23121034210143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2569003801133 (or 2569003801130 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 23121034210143 its reverse (34101243012132), we get a palindrome (57222277222275).

The spelling of 23121034210143 in words is "twenty-three trillion, one hundred twenty-one billion, thirty-four million, two hundred ten thousand, one hundred forty-three".