109019756213 has 2 divisors, whose sum is σ = 109019756214. Its totient is φ = 109019756212.

The previous prime is 109019756101. The next prime is 109019756239. The reversal of 109019756213 is 312657910901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69515013649 + 39504742564 = 263657^2 + 198758^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109019756213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109019756243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54509878106 + 54509878107.

It is an arithmetic number, because the mean of its divisors is an integer number (54509878107).

Almost surely, 2^109019756213 is an apocalyptic number.

It is an amenable number.

109019756213 is a deficient number, since it is larger than the sum of its proper divisors (1).

109019756213 is an equidigital number, since it uses as much as digits as its factorization.

109019756213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 102060, while the sum is 44.

The spelling of 109019756213 in words is "one hundred nine billion, nineteen million, seven hundred fifty-six thousand, two hundred thirteen".