11030311312 has 20 divisors (see below), whose sum is σ = 21373436700. Its totient is φ = 5514585728.

The previous prime is 11030311301. The next prime is 11030311321. The reversal of 11030311312 is 21311303011.

It can be written as a sum of positive squares in 2 ways, for example, as 5094533376 + 5935777936 = 71376^2 + 77044^2 .

It is a super-2 number, since 2×11030311312² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154938 + ... + 214630.

It is an arithmetic number, because the mean of its divisors is an integer number (1068671835).

Almost surely, 2^11030311312 is an apocalyptic number.

It is an amenable number.

11030311312 is a deficient number, since it is larger than the sum of its proper divisors (10343125388).

11030311312 is a wasteful number, since it uses less digits than its factorization.

11030311312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71250 (or 71244 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 11030311312 its reverse (21311303011), we get a palindrome (32341614323).

The spelling of 11030311312 in words is "eleven billion, thirty million, three hundred eleven thousand, three hundred twelve".