131332233 has 4 divisors (see below), whose sum is σ = 175109648. Its totient is φ = 87554820.

The previous prime is 131332211. The next prime is 131332273. The reversal of 131332233 is 332233131.

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, and also an emirpimes, since its reverse is a distinct semiprime: 332233131 = 3 ⋅110744377.

It is not a de Polignac number, because 131332233 - 2¹⁸ = 131070089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131332273) 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, 21888703 + ... + 21888708.

It is an arithmetic number, because the mean of its divisors is an integer number (43777412).

Almost surely, 2^131332233 is an apocalyptic number.

It is an amenable number.

131332233 is a deficient number, since it is larger than the sum of its proper divisors (43777415).

131332233 is an equidigital number, since it uses as much as digits as its factorization.

131332233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43777414.

The product of its digits is 972, while the sum is 21.

The square root of 131332233 is about 11460.0276177678. The cubic root of 131332233 is about 508.3042912609.

Adding to 131332233 its reverse (332233131), we get a palindrome (463565364).

The spelling of 131332233 in words is "one hundred thirty-one million, three hundred thirty-two thousand, two hundred thirty-three".