11212331345 has 8 divisors (see below), whose sum is σ = 13455391464. Its totient is φ = 8969469184.

The previous prime is 11212331309. The next prime is 11212331359. The reversal of 11212331345 is 54313321211.

It can be written as a sum of positive squares in 4 ways, for example, as 8532241 + 11203799104 = 2921^2 + 105848^2 .

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 11212331345 - 2⁸ = 11212331089 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143657 + ... + 207513.

It is an arithmetic number, because the mean of its divisors is an integer number (1681923933).

Almost surely, 2^11212331345 is an apocalyptic number.

It is an amenable number.

11212331345 is a deficient number, since it is larger than the sum of its proper divisors (2243060119).

11212331345 is an equidigital number, since it uses as much as digits as its factorization.

11212331345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98979.

The product of its digits is 2160, while the sum is 26.

Adding to 11212331345 its reverse (54313321211), we get a palindrome (65525652556).

The spelling of 11212331345 in words is "eleven billion, two hundred twelve million, three hundred thirty-one thousand, three hundred forty-five".