23421543151 has 4 divisors (see below), whose sum is σ = 24229182600. Its totient is φ = 22613903704.

The previous prime is 23421543139. The next prime is 23421543163. The reversal of 23421543151 is 15134512432.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (23421543139) and next prime (23421543163).

It is a cyclic number.

It is not a de Polignac number, because 23421543151 - 2¹¹ = 23421541103 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 (23421543251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 403819681 + ... + 403819738.

It is an arithmetic number, because the mean of its divisors is an integer number (6057295650).

Almost surely, 2^23421543151 is an apocalyptic number.

23421543151 is a deficient number, since it is larger than the sum of its proper divisors (807639449).

23421543151 is an equidigital number, since it uses as much as digits as its factorization.

23421543151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807639448.

The product of its digits is 14400, while the sum is 31.

The spelling of 23421543151 in words is "twenty-three billion, four hundred twenty-one million, five hundred forty-three thousand, one hundred fifty-one".