11012020097 has 4 divisors (see below), whose sum is σ = 11859098580. Its totient is φ = 10164941616.

The previous prime is 11012020091. The next prime is 11012020111. The reversal of 11012020097 is 79002021011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79002021011 = 17923 ⋅4407857.

It can be written as a sum of positive squares in 2 ways, for example, as 2942411536 + 8069608561 = 54244^2 + 89831^2 .

It is a cyclic number.

It is not a de Polignac number, because 11012020097 - 2²⁶ = 10944911233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11012020091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423539222 + ... + 423539247.

It is an arithmetic number, because the mean of its divisors is an integer number (2964774645).

Almost surely, 2^11012020097 is an apocalyptic number.

It is an amenable number.

11012020097 is a deficient number, since it is larger than the sum of its proper divisors (847078483).

11012020097 is an equidigital number, since it uses as much as digits as its factorization.

11012020097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847078482.

The product of its (nonzero) digits is 252, while the sum is 23.

The spelling of 11012020097 in words is "eleven billion, twelve million, twenty thousand, ninety-seven".