131233357 has 2 divisors, whose sum is σ = 131233358. Its totient is φ = 131233356.

The previous prime is 131233321. The next prime is 131233391. The reversal of 131233357 is 753332131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90516196 + 40717161 = 9514^2 + 6381^2 .

It is an emirp because it is prime and its reverse (753332131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131233357 - 2⁷ = 131233229 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131233397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65616678 + 65616679.

It is an arithmetic number, because the mean of its divisors is an integer number (65616679).

Almost surely, 2^131233357 is an apocalyptic number.

It is an amenable number.

131233357 is a deficient number, since it is larger than the sum of its proper divisors (1).

131233357 is an equidigital number, since it uses as much as digits as its factorization.

131233357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5670, while the sum is 28.

The square root of 131233357 is about 11455.7128542924. The cubic root of 131233357 is about 508.1766970111.

Adding to 131233357 its reverse (753332131), we get a palindrome (884565488).

The spelling of 131233357 in words is "one hundred thirty-one million, two hundred thirty-three thousand, three hundred fifty-seven".