1311104442120 has 64 divisors (see below), whose sum is σ = 4290887269440. Its totient is φ = 317843500800.

The previous prime is 1311104442083. The next prime is 1311104442143. The reversal of 1311104442120 is 212444011131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 496629151 + ... + 496631790.

It is an arithmetic number, because the mean of its divisors is an integer number (67045113585).

Almost surely, 2^{1311104442120} is an apocalyptic number.

1311104442120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1311104442120 is an abundant number, since it is smaller than the sum of its proper divisors (2979782827320).

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

1311104442120 is a wasteful number, since it uses less digits than its factorization.

1311104442120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993260966 (or 993260962 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 1311104442120 its reverse (212444011131), we get a palindrome (1523548453251).

The spelling of 1311104442120 in words is "one trillion, three hundred eleven billion, one hundred four million, four hundred forty-two thousand, one hundred twenty".