23173241231257 has 16 divisors (see below), whose sum is σ = 25633888393680. Its totient is φ = 20809626907392.

The previous prime is 23173241231221. The next prime is 23173241231291. The reversal of 23173241231257 is 75213214237132.

It can be written as a sum of positive squares in 8 ways, for example, as 3147115028121 + 20026126203136 = 1774011^2 + 4475056^2 .

It is a cyclic number.

It is not a de Polignac number, because 23173241231257 - 2¹⁵ = 23173241198489 is a prime.

It is a super-3 number, since 3×23173241231257³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23173241231857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30963 + ... + 6807895.

It is an arithmetic number, because the mean of its divisors is an integer number (1602118024605).

Almost surely, 2^{23173241231257} is an apocalyptic number.

It is an amenable number.

23173241231257 is a deficient number, since it is larger than the sum of its proper divisors (2460647162423).

23173241231257 is a wasteful number, since it uses less digits than its factorization.

23173241231257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6784092.

The product of its digits is 423360, while the sum is 43.

Adding to 23173241231257 its reverse (75213214237132), we get a palindrome (98386455468389).

The spelling of 23173241231257 in words is "twenty-three trillion, one hundred seventy-three billion, two hundred forty-one million, two hundred thirty-one thousand, two hundred fifty-seven".