31033101949 has 2 divisors, whose sum is σ = 31033101950. Its totient is φ = 31033101948.

The previous prime is 31033101947. The next prime is 31033102069. The reversal of 31033101949 is 94910133013.

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., 30982336324 + 50765625 = 176018^2 + 7125^2 .

It is a cyclic number.

It is not a de Polignac number, because 31033101949 - 2¹ = 31033101947 is a prime.

Together with 31033101947, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31033101947) 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, 15516550974 + 15516550975.

It is an arithmetic number, because the mean of its divisors is an integer number (15516550975).

Almost surely, 2^31033101949 is an apocalyptic number.

It is an amenable number.

31033101949 is a deficient number, since it is larger than the sum of its proper divisors (1).

31033101949 is an equidigital number, since it uses as much as digits as its factorization.

31033101949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 34.

The spelling of 31033101949 in words is "thirty-one billion, thirty-three million, one hundred one thousand, nine hundred forty-nine".