131112031233 has 4 divisors (see below), whose sum is σ = 174816041648. Its totient is φ = 87408020820.

The previous prime is 131112031201. The next prime is 131112031243. The reversal of 131112031233 is 332130211131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 131112031233 - 2⁵ = 131112031201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131112031243) 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, 21852005203 + ... + 21852005208.

It is an arithmetic number, because the mean of its divisors is an integer number (43704010412).

Almost surely, 2^131112031233 is an apocalyptic number.

It is an amenable number.

131112031233 is a deficient number, since it is larger than the sum of its proper divisors (43704010415).

131112031233 is an equidigital number, since it uses as much as digits as its factorization.

131112031233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43704010414.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 131112031233 its reverse (332130211131), we get a palindrome (463242242364).

The spelling of 131112031233 in words is "one hundred thirty-one billion, one hundred twelve million, thirty-one thousand, two hundred thirty-three".