11231212193 has 2 divisors, whose sum is σ = 11231212194. Its totient is φ = 11231212192.

The previous prime is 11231212169. The next prime is 11231212217. The reversal of 11231212193 is 39121213211.

It is a balanced prime because it is at equal distance from previous prime (11231212169) and next prime (11231212217).

It can be written as a sum of positive squares in only one way, i.e., 8147409169 + 3083803024 = 90263^2 + 55532^2 .

It is a cyclic number.

It is not a de Polignac number, because 11231212193 - 2¹² = 11231208097 is a prime.

It is a super-2 number, since 2×11231212193² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11231211193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5615606096 + 5615606097.

It is an arithmetic number, because the mean of its divisors is an integer number (5615606097).

Almost surely, 2^11231212193 is an apocalyptic number.

It is an amenable number.

11231212193 is a deficient number, since it is larger than the sum of its proper divisors (1).

11231212193 is an equidigital number, since it uses as much as digits as its factorization.

11231212193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 26.

The spelling of 11231212193 in words is "eleven billion, two hundred thirty-one million, two hundred twelve thousand, one hundred ninety-three".