131231033233 has 2 divisors, whose sum is σ = 131231033234. Its totient is φ = 131231033232.

The previous prime is 131231033173. The next prime is 131231033249. The reversal of 131231033233 is 332330132131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81825746704 + 49405286529 = 286052^2 + 222273^2 .

It is a cyclic number.

It is not a de Polignac number, because 131231033233 - 2¹³ = 131231025041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131231033198 and 131231033207.

It is not a weakly prime, because it can be changed into another prime (131231033293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65615516616 + 65615516617.

It is an arithmetic number, because the mean of its divisors is an integer number (65615516617).

Almost surely, 2^131231033233 is an apocalyptic number.

It is an amenable number.

131231033233 is a deficient number, since it is larger than the sum of its proper divisors (1).

131231033233 is an equidigital number, since it uses as much as digits as its factorization.

131231033233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 131231033233 its reverse (332330132131), we get a palindrome (463561165364).

The spelling of 131231033233 in words is "one hundred thirty-one billion, two hundred thirty-one million, thirty-three thousand, two hundred thirty-three".