1311010132020 has 96 divisors (see below), whose sum is σ = 4012138884096. Its totient is φ = 318423705600.

The previous prime is 1311010131967. The next prime is 1311010132043. The reversal of 1311010132020 is 202310101131.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 20699091 + ... + 20762330.

It is an arithmetic number, because the mean of its divisors is an integer number (41793113376).

Almost surely, 2^{1311010132020} is an apocalyptic number.

1311010132020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1311010132020 is an abundant number, since it is smaller than the sum of its proper divisors (2701128752076).

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

1311010132020 is a wasteful number, since it uses less digits than its factorization.

1311010132020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41461481 (or 41461479 counting only the distinct ones).

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

Adding to 1311010132020 its reverse (202310101131), we get a palindrome (1513320233151).

The spelling of 1311010132020 in words is "one trillion, three hundred eleven billion, ten million, one hundred thirty-two thousand, twenty".