1311120131010 has 32 divisors (see below), whose sum is σ = 3147021521280. Its totient is φ = 349595011968.

The previous prime is 1311120130949. The next prime is 1311120131011. The reversal of 1311120131010 is 101310211131.

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

It is not an unprimeable number, because it can be changed into a prime (1311120131011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2025315 + ... + 2593094.

It is an arithmetic number, because the mean of its divisors is an integer number (98344422540).

Almost surely, 2^{1311120131010} is an apocalyptic number.

1311120131010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1311120131010 is an abundant number, since it is smaller than the sum of its proper divisors (1835901390270).

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

1311120131010 is a wasteful number, since it uses less digits than its factorization.

1311120131010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4627882.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 1311120131010 its reverse (101310211131), we get a palindrome (1412430342141).

The spelling of 1311120131010 in words is "one trillion, three hundred eleven billion, one hundred twenty million, one hundred thirty-one thousand, ten".