11023121001 has 16 divisors (see below), whose sum is σ = 14791544768. Its totient is φ = 7301793600.

The previous prime is 11023120973. The next prime is 11023121027. The reversal of 11023121001 is 10012132011.

It is not a de Polignac number, because 11023121001 - 2⁶ = 11023120937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11023128001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 663486 + ... + 679896.

It is an arithmetic number, because the mean of its divisors is an integer number (924471548).

Almost surely, 2^11023121001 is an apocalyptic number.

It is an amenable number.

11023121001 is a deficient number, since it is larger than the sum of its proper divisors (3768423767).

11023121001 is a wasteful number, since it uses less digits than its factorization.

11023121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17832.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 11023121001 its reverse (10012132011), we get a palindrome (21035253012).

The spelling of 11023121001 in words is "eleven billion, twenty-three million, one hundred twenty-one thousand, one".