11023210121 has 8 divisors (see below), whose sum is σ = 13743223104. Its totient is φ = 8589514320.

The previous prime is 11023210117. The next prime is 11023210123. The reversal of 11023210121 is 12101232011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11023210121 - 2² = 11023210117 is a prime.

It is a super-2 number, since 2×11023210121² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11023210096 and 11023210105.

It is not an unprimeable number, because it can be changed into a prime (11023210123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71579210 + ... + 71579363.

It is an arithmetic number, because the mean of its divisors is an integer number (1717902888).

Almost surely, 2^11023210121 is an apocalyptic number.

11023210121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11023210121 is a deficient number, since it is larger than the sum of its proper divisors (2720012983).

11023210121 is a wasteful number, since it uses less digits than its factorization.

11023210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143158591.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 11023210121 its reverse (12101232011), we get a palindrome (23124442132).

The spelling of 11023210121 in words is "eleven billion, twenty-three million, two hundred ten thousand, one hundred twenty-one".