23151231105 has 32 divisors (see below), whose sum is σ = 37347222528. Its totient is φ = 12245688000.

The previous prime is 23151231097. The next prime is 23151231127. The reversal of 23151231105 is 50113215132.

It is not a de Polignac number, because 23151231105 - 2³ = 23151231097 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5199130 + ... + 5203580.

It is an arithmetic number, because the mean of its divisors is an integer number (1167100704).

Almost surely, 2^23151231105 is an apocalyptic number.

It is an amenable number.

23151231105 is a deficient number, since it is larger than the sum of its proper divisors (14195991423).

23151231105 is a wasteful number, since it uses less digits than its factorization.

23151231105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7237.

The product of its (nonzero) digits is 900, while the sum is 24.

Adding to 23151231105 its reverse (50113215132), we get a palindrome (73264446237).

The spelling of 23151231105 in words is "twenty-three billion, one hundred fifty-one million, two hundred thirty-one thousand, one hundred five".