23172120526 has 8 divisors (see below), whose sum is σ = 34760306520. Its totient is φ = 11585351688.

The previous prime is 23172120509. The next prime is 23172120533. The reversal of 23172120526 is 62502127132.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312421 + ... + 379408.

It is an arithmetic number, because the mean of its divisors is an integer number (4345038315).

Almost surely, 2^23172120526 is an apocalyptic number.

23172120526 is a deficient number, since it is larger than the sum of its proper divisors (11588185994).

23172120526 is a wasteful number, since it uses less digits than its factorization.

23172120526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708578.

The product of its (nonzero) digits is 10080, while the sum is 31.

Adding to 23172120526 its reverse (62502127132), we get a palindrome (85674247658).

The spelling of 23172120526 in words is "twenty-three billion, one hundred seventy-two million, one hundred twenty thousand, five hundred twenty-six".