11130400312 has 8 divisors (see below), whose sum is σ = 20869500600. Its totient is φ = 5565200152.

The previous prime is 11130400291. The next prime is 11130400321. The reversal of 11130400312 is 21300403111.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×11130400312² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 695650012 + ... + 695650027.

It is an arithmetic number, because the mean of its divisors is an integer number (2608687575).

Almost surely, 2^11130400312 is an apocalyptic number.

It is an amenable number.

11130400312 is a deficient number, since it is larger than the sum of its proper divisors (9739100288).

11130400312 is a wasteful number, since it uses less digits than its factorization.

11130400312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391300045 (or 1391300041 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11130400312 its reverse (21300403111), we get a palindrome (32430803423).

The spelling of 11130400312 in words is "eleven billion, one hundred thirty million, four hundred thousand, three hundred twelve".