30831211469 has 2 divisors, whose sum is σ = 30831211470. Its totient is φ = 30831211468.

The previous prime is 30831211399. The next prime is 30831211549. The reversal of 30831211469 is 96411213803.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27226650025 + 3604561444 = 165005^2 + 60038^2 .

It is a cyclic number.

It is not a de Polignac number, because 30831211469 - 2³² = 26536244173 is a prime.

It is a super-2 number, since 2×30831211469² (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 (30831210469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15415605734 + 15415605735.

It is an arithmetic number, because the mean of its divisors is an integer number (15415605735).

Almost surely, 2^30831211469 is an apocalyptic number.

It is an amenable number.

30831211469 is a deficient number, since it is larger than the sum of its proper divisors (1).

30831211469 is an equidigital number, since it uses as much as digits as its factorization.

30831211469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 38.

The spelling of 30831211469 in words is "thirty billion, eight hundred thirty-one million, two hundred eleven thousand, four hundred sixty-nine".