91254813203 has 2 divisors, whose sum is σ = 91254813204. Its totient is φ = 91254813202.

The previous prime is 91254813197. The next prime is 91254813217. The reversal of 91254813203 is 30231845219.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 91254813203 - 2⁴ = 91254813187 is a prime.

It is not a weakly prime, because it can be changed into another prime (91254813253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45627406601 + 45627406602.

It is an arithmetic number, because the mean of its divisors is an integer number (45627406602).

Almost surely, 2^91254813203 is an apocalyptic number.

91254813203 is a deficient number, since it is larger than the sum of its proper divisors (1).

91254813203 is an equidigital number, since it uses as much as digits as its factorization.

91254813203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 91254813203 in words is "ninety-one billion, two hundred fifty-four million, eight hundred thirteen thousand, two hundred three".