101255545091 has 2 divisors, whose sum is σ = 101255545092. Its totient is φ = 101255545090.

The previous prime is 101255545073. The next prime is 101255545151. The reversal of 101255545091 is 190545552101.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101255545091 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (101255545591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50627772545 + 50627772546.

It is an arithmetic number, because the mean of its divisors is an integer number (50627772546).

Almost surely, 2^101255545091 is an apocalyptic number.

101255545091 is a deficient number, since it is larger than the sum of its proper divisors (1).

101255545091 is an equidigital number, since it uses as much as digits as its factorization.

101255545091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45000, while the sum is 38.

The spelling of 101255545091 in words is "one hundred one billion, two hundred fifty-five million, five hundred forty-five thousand, ninety-one".