23131212121303 has 8 divisors (see below), whose sum is σ = 27175130324496. Its totient is φ = 19410807374400.

The previous prime is 23131212121289. The next prime is 23131212121373. The reversal of 23131212121303 is 30312121213132.

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

It is not a de Polignac number, because 23131212121303 - 2¹⁷ = 23131211990231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23131212121373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80878363918 + ... + 80878364203.

It is an arithmetic number, because the mean of its divisors is an integer number (3396891290562).

Almost surely, 2^{23131212121303} is an apocalyptic number.

23131212121303 is a deficient number, since it is larger than the sum of its proper divisors (4043918203193).

23131212121303 is a wasteful number, since it uses less digits than its factorization.

23131212121303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161756728145.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 23131212121303 its reverse (30312121213132), we get a palindrome (53443333334435).

The spelling of 23131212121303 in words is "twenty-three trillion, one hundred thirty-one billion, two hundred twelve million, one hundred twenty-one thousand, three hundred three".