23151421351 has 8 divisors (see below), whose sum is σ = 24672006144. Its totient is φ = 21673670040.

The previous prime is 23151421327. The next prime is 23151421369. The reversal of 23151421351 is 15312415132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23151421351 - 2⁹ = 23151420839 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 (23155421351) 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, 10707255 + ... + 10709416.

It is an arithmetic number, because the mean of its divisors is an integer number (3084000768).

Almost surely, 2^23151421351 is an apocalyptic number.

23151421351 is a deficient number, since it is larger than the sum of its proper divisors (1520584793).

23151421351 is a wasteful number, since it uses less digits than its factorization.

23151421351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21416741.

The product of its digits is 3600, while the sum is 28.

Adding to 23151421351 its reverse (15312415132), we get a palindrome (38463836483).

The spelling of 23151421351 in words is "twenty-three billion, one hundred fifty-one million, four hundred twenty-one thousand, three hundred fifty-one".