31200133357 has 2 divisors, whose sum is σ = 31200133358. Its totient is φ = 31200133356.

The previous prime is 31200133297. The next prime is 31200133403. The reversal of 31200133357 is 75333100213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17579842921 + 13620290436 = 132589^2 + 116706^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31200133357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31200133057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15600066678 + 15600066679.

It is an arithmetic number, because the mean of its divisors is an integer number (15600066679).

Almost surely, 2^31200133357 is an apocalyptic number.

It is an amenable number.

31200133357 is a deficient number, since it is larger than the sum of its proper divisors (1).

31200133357 is an equidigital number, since it uses as much as digits as its factorization.

31200133357 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 31200133357 in words is "thirty-one billion, two hundred million, one hundred thirty-three thousand, three hundred fifty-seven".