31150465069 has 2 divisors, whose sum is σ = 31150465070. Its totient is φ = 31150465068.

The previous prime is 31150465033. The next prime is 31150465139. The reversal of 31150465069 is 96056405113.

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., 23889720969 + 7260744100 = 154563^2 + 85210^2 .

It is an emirp because it is prime and its reverse (96056405113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31150465069 - 2⁷ = 31150464941 is a prime.

It is a super-2 number, since 2×31150465069² (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 (31150465369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15575232534 + 15575232535.

It is an arithmetic number, because the mean of its divisors is an integer number (15575232535).

Almost surely, 2^31150465069 is an apocalyptic number.

It is an amenable number.

31150465069 is a deficient number, since it is larger than the sum of its proper divisors (1).

31150465069 is an equidigital number, since it uses as much as digits as its factorization.

31150465069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97200, while the sum is 40.

The spelling of 31150465069 in words is "thirty-one billion, one hundred fifty million, four hundred sixty-five thousand, sixty-nine".