23143131231113 has 4 divisors (see below), whose sum is σ = 23707597846548. Its totient is φ = 22578664615680.

The previous prime is 23143131231109. The next prime is 23143131231119. The reversal of 23143131231113 is 31113213134132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3641086034569 + 19502045196544 = 1908163^2 + 4416112^2 .

It is a cyclic number.

It is not a de Polignac number, because 23143131231113 - 2² = 23143131231109 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23143131231119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282233307656 + ... + 282233307737.

It is an arithmetic number, because the mean of its divisors is an integer number (5926899461637).

Almost surely, 2^{23143131231113} is an apocalyptic number.

It is an amenable number.

23143131231113 is a deficient number, since it is larger than the sum of its proper divisors (564466615435).

23143131231113 is an equidigital number, since it uses as much as digits as its factorization.

23143131231113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564466615434.

The product of its digits is 3888, while the sum is 29.

Adding to 23143131231113 its reverse (31113213134132), we get a palindrome (54256344365245).

The spelling of 23143131231113 in words is "twenty-three trillion, one hundred forty-three billion, one hundred thirty-one million, two hundred thirty-one thousand, one hundred thirteen".