23121034015143 has 8 divisors (see below), whose sum is σ = 30829168566000. Its totient is φ = 15413461070528.

The previous prime is 23121034015111. The next prime is 23121034015151. The reversal of 23121034015143 is 34151043012132.

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 23121034015143 - 2⁵ = 23121034015111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23121034015143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23121034015153) 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, 140305488 + ... + 140470181.

It is an arithmetic number, because the mean of its divisors is an integer number (3853646070750).

Almost surely, 2^{23121034015143} is an apocalyptic number.

23121034015143 is a deficient number, since it is larger than the sum of its proper divisors (7708134550857).

23121034015143 is a wasteful number, since it uses less digits than its factorization.

23121034015143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280803121.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 23121034015143 its reverse (34151043012132), we get a palindrome (57272077027275).

The spelling of 23121034015143 in words is "twenty-three trillion, one hundred twenty-one billion, thirty-four million, fifteen thousand, one hundred forty-three".