11828877121 has 2 divisors, whose sum is σ = 11828877122. Its totient is φ = 11828877120.

The previous prime is 11828877107. The next prime is 11828877127. The reversal of 11828877121 is 12177882811.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11753812225 + 75064896 = 108415^2 + 8664^2 .

It is a cyclic number.

It is not a de Polignac number, because 11828877121 - 2⁵ = 11828877089 is a prime.

It is not a weakly prime, because it can be changed into another prime (11828877127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5914438560 + 5914438561.

It is an arithmetic number, because the mean of its divisors is an integer number (5914438561).

Almost surely, 2^11828877121 is an apocalyptic number.

It is an amenable number.

11828877121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11828877121 is an equidigital number, since it uses as much as digits as its factorization.

11828877121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100352, while the sum is 46.

The spelling of 11828877121 in words is "eleven billion, eight hundred twenty-eight million, eight hundred seventy-seven thousand, one hundred twenty-one".