1320110311312 has 40 divisors (see below), whose sum is σ = 2754531044216. Its totient is φ = 609266174976.

The previous prime is 1320110311249. The next prime is 1320110311337. The reversal of 1320110311312 is 2131130110231.

It can be written as a sum of positive squares in 4 ways, for example, as 1508234896 + 1318602076416 = 38836^2 + 1148304^2 .

It is a super-2 number, since 2×1320110311312² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1320110311312.

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, 13988188 + ... + 14082244.

Almost surely, 2^{1320110311312} is an apocalyptic number.

It is an amenable number.

1320110311312 is an abundant number, since it is smaller than the sum of its proper divisors (1434420732904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1320110311312 is a wasteful number, since it uses less digits than its factorization.

1320110311312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161555 (or 161549 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1320110311312 its reverse (2131130110231), we get a palindrome (3451240421543).

The spelling of 1320110311312 in words is "one trillion, three hundred twenty billion, one hundred ten million, three hundred eleven thousand, three hundred twelve".