11311011230120 has 96 divisors (see below), whose sum is σ = 29711718724680. Its totient is φ = 3864060587520.

The previous prime is 11311011230081. The next prime is 11311011230131. The reversal of 11311011230120 is 2103211011311.

It can be written as a sum of positive squares in 4 ways, for example, as 4050325301764 + 7260685928356 = 2012542^2 + 2694566^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9873911 + ... + 10959750.

Almost surely, 2^{11311011230120} is an apocalyptic number.

11311011230120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11311011230120 is an abundant number, since it is smaller than the sum of its proper divisors (18400707494560).

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

11311011230120 is a wasteful number, since it uses less digits than its factorization.

11311011230120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20833963 (or 20833952 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 11311011230120 its reverse (2103211011311), we get a palindrome (13414222241431).

The spelling of 11311011230120 in words is "eleven trillion, three hundred eleven billion, eleven million, two hundred thirty thousand, one hundred twenty".