31301200069 has 2 divisors, whose sum is σ = 31301200070. Its totient is φ = 31301200068.

The previous prime is 31301200033. The next prime is 31301200087. The reversal of 31301200069 is 96000210313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22346363169 + 8954836900 = 149487^2 + 94630^2 .

It is a cyclic number.

It is not a de Polignac number, because 31301200069 - 2⁹ = 31301199557 is a prime.

It is a super-2 number, since 2×31301200069² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31301203069) 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, 15650600034 + 15650600035.

It is an arithmetic number, because the mean of its divisors is an integer number (15650600035).

Almost surely, 2^31301200069 is an apocalyptic number.

It is an amenable number.

31301200069 is a deficient number, since it is larger than the sum of its proper divisors (1).

31301200069 is an equidigital number, since it uses as much as digits as its factorization.

31301200069 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 25.

The spelling of 31301200069 in words is "thirty-one billion, three hundred one million, two hundred thousand, sixty-nine".