23144154321 has 32 divisors (see below), whose sum is σ = 32408449920. Its totient is φ = 14677737984.

The previous prime is 23144154311. The next prime is 23144154359. The reversal of 23144154321 is 12345144132.

It is not a de Polignac number, because 23144154321 - 2¹⁰ = 23144153297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23144154311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 924315 + ... + 949023.

It is an arithmetic number, because the mean of its divisors is an integer number (1012764060).

Almost surely, 2^23144154321 is an apocalyptic number.

It is an amenable number.

23144154321 is a deficient number, since it is larger than the sum of its proper divisors (9264295599).

23144154321 is a wasteful number, since it uses less digits than its factorization.

23144154321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24945.

The product of its digits is 11520, while the sum is 30.

Adding to 23144154321 its reverse (12345144132), we get a palindrome (35489298453).

The spelling of 23144154321 in words is "twenty-three billion, one hundred forty-four million, one hundred fifty-four thousand, three hundred twenty-one".