1320203011110 has 16 divisors (see below), whose sum is σ = 3168487226736. Its totient is φ = 352054136288.

The previous prime is 1320203011109. The next prime is 1320203011147. The reversal of 1320203011110 is 111103020231.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1320203011110.

It is a congruent 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, 22003383489 + ... + 22003383548.

It is an arithmetic number, because the mean of its divisors is an integer number (198030451671).

Almost surely, 2^{1320203011110} is an apocalyptic number.

1320203011110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1320203011110 is an abundant number, since it is smaller than the sum of its proper divisors (1848284215626).

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

1320203011110 is a wasteful number, since it uses less digits than its factorization.

1320203011110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44006767047.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1320203011110 its reverse (111103020231), we get a palindrome (1431306031341).

The spelling of 1320203011110 in words is "one trillion, three hundred twenty billion, two hundred three million, eleven thousand, one hundred ten".