91229116403 has 2 divisors, whose sum is σ = 91229116404. Its totient is φ = 91229116402.

The previous prime is 91229116357. The next prime is 91229116463. The reversal of 91229116403 is 30461192219.

It is a weak prime.

It is an emirp because it is prime and its reverse (30461192219) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 91229116403 - 2¹⁴ = 91229100019 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (91229116463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45614558201 + 45614558202.

It is an arithmetic number, because the mean of its divisors is an integer number (45614558202).

Almost surely, 2^91229116403 is an apocalyptic number.

91229116403 is a deficient number, since it is larger than the sum of its proper divisors (1).

91229116403 is an equidigital number, since it uses as much as digits as its factorization.

91229116403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 38.

The spelling of 91229116403 in words is "ninety-one billion, two hundred twenty-nine million, one hundred sixteen thousand, four hundred three".