11030212091 has 2 divisors, whose sum is σ = 11030212092. Its totient is φ = 11030212090.

The previous prime is 11030212079. The next prime is 11030212111. The reversal of 11030212091 is 19021203011.

It is an a-pointer prime, because the next prime (11030212111) can be obtained adding 11030212091 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11030212091 - 2⁶ = 11030212027 is a prime.

It is not a weakly prime, because it can be changed into another prime (11030262091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5515106045 + 5515106046.

It is an arithmetic number, because the mean of its divisors is an integer number (5515106046).

Almost surely, 2^11030212091 is an apocalyptic number.

11030212091 is a deficient number, since it is larger than the sum of its proper divisors (1).

11030212091 is an equidigital number, since it uses as much as digits as its factorization.

11030212091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 20.

The spelling of 11030212091 in words is "eleven billion, thirty million, two hundred twelve thousand, ninety-one".