11002121011 has 4 divisors (see below), whose sum is σ = 12573852592. Its totient is φ = 9430389432.

The previous prime is 11002121003. The next prime is 11002121023. The reversal of 11002121011 is 11012120011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11012120011 = 359 ⋅30674429.

It is a cyclic number.

It is not a de Polignac number, because 11002121011 - 2³ = 11002121003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11002122011) 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, 785865780 + ... + 785865793.

It is an arithmetic number, because the mean of its divisors is an integer number (3143463148).

Almost surely, 2^11002121011 is an apocalyptic number.

11002121011 is a deficient number, since it is larger than the sum of its proper divisors (1571731581).

11002121011 is an equidigital number, since it uses as much as digits as its factorization.

11002121011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1571731580.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 11002121011 its reverse (11012120011), we get a palindrome (22014241022).

The spelling of 11002121011 in words is "eleven billion, two million, one hundred twenty-one thousand, eleven".