31200133297 has 2 divisors, whose sum is σ = 31200133298. Its totient is φ = 31200133296.

The previous prime is 31200133271. The next prime is 31200133357. The reversal of 31200133297 is 79233100213.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28148786176 + 3051347121 = 167776^2 + 55239^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31200133297 is a prime.

It is not a weakly prime, because it can be changed into another prime (31200133247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15600066648 + 15600066649.

It is an arithmetic number, because the mean of its divisors is an integer number (15600066649).

Almost surely, 2^31200133297 is an apocalyptic number.

It is an amenable number.

31200133297 is a deficient number, since it is larger than the sum of its proper divisors (1).

31200133297 is an equidigital number, since it uses as much as digits as its factorization.

31200133297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 31.

The spelling of 31200133297 in words is "thirty-one billion, two hundred million, one hundred thirty-three thousand, two hundred ninety-seven".