131623033 has 2 divisors, whose sum is σ = 131623034. Its totient is φ = 131623032.

The previous prime is 131623031. The next prime is 131623039. The reversal of 131623033 is 330326131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76090729 + 55532304 = 8723^2 + 7452^2 .

It is a cyclic number.

It is not a de Polignac number, because 131623033 - 2¹ = 131623031 is a prime.

It is a super-2 number, since 2×131623033² = 34649245632238178, which contains 22 as substring.

Together with 131623031, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 131622995 and 131623013.

It is not a weakly prime, because it can be changed into another prime (131623031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65811516 + 65811517.

It is an arithmetic number, because the mean of its divisors is an integer number (65811517).

Almost surely, 2^131623033 is an apocalyptic number.

It is an amenable number.

131623033 is a deficient number, since it is larger than the sum of its proper divisors (1).

131623033 is an equidigital number, since it uses as much as digits as its factorization.

131623033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 22.

The square root of 131623033 is about 11472.7081807218. The cubic root of 131623033 is about 508.6791825315.

Adding to 131623033 its reverse (330326131), we get a palindrome (461949164).

The spelling of 131623033 in words is "one hundred thirty-one million, six hundred twenty-three thousand, thirty-three".