23403121121143 has 8 divisors (see below), whose sum is σ = 23974686012816. Its totient is φ = 22831592280000.

The previous prime is 23403121121137. The next prime is 23403121121153. The reversal of 23403121121143 is 34112112130432.

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 23403121121143 - 2¹³ = 23403121112951 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 (23403121121153) 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, 7696108 + ... + 10297393.

It is an arithmetic number, because the mean of its divisors is an integer number (2996835751602).

Almost surely, 2^{23403121121143} is an apocalyptic number.

23403121121143 is a deficient number, since it is larger than the sum of its proper divisors (571564891673).

23403121121143 is a wasteful number, since it uses less digits than its factorization.

23403121121143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18025265.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 23403121121143 its reverse (34112112130432), we get a palindrome (57515233251575).

The spelling of 23403121121143 in words is "twenty-three trillion, four hundred three billion, one hundred twenty-one million, one hundred twenty-one thousand, one hundred forty-three".