11023230121 has 2 divisors, whose sum is σ = 11023230122. Its totient is φ = 11023230120.

The previous prime is 11023230103. The next prime is 11023230157. The reversal of 11023230121 is 12103232011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9440065600 + 1583164521 = 97160^2 + 39789^2 .

It is a cyclic number.

It is not a de Polignac number, because 11023230121 - 2⁷ = 11023229993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11023230095 and 11023230104.

It is not a weakly prime, because it can be changed into another prime (11023230181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5511615060 + 5511615061.

It is an arithmetic number, because the mean of its divisors is an integer number (5511615061).

Almost surely, 2^11023230121 is an apocalyptic number.

It is an amenable number.

11023230121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11023230121 is an equidigital number, since it uses as much as digits as its factorization.

11023230121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11023230121 its reverse (12103232011), we get a palindrome (23126462132).

The spelling of 11023230121 in words is "eleven billion, twenty-three million, two hundred thirty thousand, one hundred twenty-one".