23431132311243 has 16 divisors (see below), whose sum is σ = 31307263534080. Its totient is φ = 15587879090336.

The previous prime is 23431132311239. The next prime is 23431132311247. The reversal of 23431132311243 is 34211323113432.

It is an interprime number because it is at equal distance from previous prime (23431132311239) and next prime (23431132311247).

It is a cyclic number.

It is not a de Polignac number, because 23431132311243 - 2² = 23431132311239 is a prime.

It is a super-2 number, since 2×23431132311243² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23431132311247) 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, 122102296 + ... + 122294042.

It is an arithmetic number, because the mean of its divisors is an integer number (1956703970880).

Almost surely, 2^{23431132311243} is an apocalyptic number.

23431132311243 is a deficient number, since it is larger than the sum of its proper divisors (7876131222837).

23431132311243 is a wasteful number, since it uses less digits than its factorization.

23431132311243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277266.

The product of its digits is 31104, while the sum is 33.

Adding to 23431132311243 its reverse (34211323113432), we get a palindrome (57642455424675).

The spelling of 23431132311243 in words is "twenty-three trillion, four hundred thirty-one billion, one hundred thirty-two million, three hundred eleven thousand, two hundred forty-three".