331101223309949 has 2 divisors, whose sum is σ = 331101223309950. Its totient is φ = 331101223309948.

The previous prime is 331101223309903. The next prime is 331101223310041. The reversal of 331101223309949 is 949903322101133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 292713843289924 + 38387380020025 = 17108882^2 + 6195755^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331101223309949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 331101223309897 and 331101223309906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331101223309349) 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, 165550611654974 + 165550611654975.

It is an arithmetic number, because the mean of its divisors is an integer number (165550611654975).

Almost surely, 2^{331101223309949} is an apocalyptic number.

It is an amenable number.

331101223309949 is a deficient number, since it is larger than the sum of its proper divisors (1).

331101223309949 is an equidigital number, since it uses as much as digits as its factorization.

331101223309949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 944784, while the sum is 50.

The spelling of 331101223309949 in words is "three hundred thirty-one trillion, one hundred one billion, two hundred twenty-three million, three hundred nine thousand, nine hundred forty-nine".