11232121209931 has 2 divisors, whose sum is σ = 11232121209932. Its totient is φ = 11232121209930.

The previous prime is 11232121209913. The next prime is 11232121210003. The reversal of 11232121209931 is 13990212123211.

Together with previous prime (11232121209913) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11232121209931 is a prime.

It is a super-2 number, since 2×11232121209931² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11232121209901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5616060604965 + 5616060604966.

It is an arithmetic number, because the mean of its divisors is an integer number (5616060604966).

Almost surely, 2^{11232121209931} is an apocalyptic number.

11232121209931 is a deficient number, since it is larger than the sum of its proper divisors (1).

11232121209931 is an equidigital number, since it uses as much as digits as its factorization.

11232121209931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 37.

The spelling of 11232121209931 in words is "eleven trillion, two hundred thirty-two billion, one hundred twenty-one million, two hundred nine thousand, nine hundred thirty-one".