31033123049 has 2 divisors, whose sum is σ = 31033123050. Its totient is φ = 31033123048.

The previous prime is 31033123013. The next prime is 31033123123. The reversal of 31033123049 is 94032133013.

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., 30917947225 + 115175824 = 175835^2 + 10732^2 .

It is a cyclic number.

It is not a de Polignac number, because 31033123049 - 2⁸ = 31033122793 is a prime.

It is not a weakly prime, because it can be changed into another prime (31033123249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15516561524 + 15516561525.

It is an arithmetic number, because the mean of its divisors is an integer number (15516561525).

Almost surely, 2^31033123049 is an apocalyptic number.

It is an amenable number.

31033123049 is a deficient number, since it is larger than the sum of its proper divisors (1).

31033123049 is an equidigital number, since it uses as much as digits as its factorization.

31033123049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 29.

The spelling of 31033123049 in words is "thirty-one billion, thirty-three million, one hundred twenty-three thousand, forty-nine".