11331312211020 has 48 divisors (see below), whose sum is σ = 32054763631968. Its totient is φ = 2990531880960.

The previous prime is 11331312210973. The next prime is 11331312211027. The reversal of 11331312211020 is 2011221313311.

It is a super-2 number, since 2×11331312211020² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11331312211027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 973474611 + ... + 973486250.

It is an arithmetic number, because the mean of its divisors is an integer number (667807575666).

Almost surely, 2^{11331312211020} is an apocalyptic number.

11331312211020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11331312211020 is an abundant number, since it is smaller than the sum of its proper divisors (20723451420948).

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

11331312211020 is a wasteful number, since it uses less digits than its factorization.

11331312211020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1946960970 (or 1946960968 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 11331312211020 its reverse (2011221313311), we get a palindrome (13342533524331).

The spelling of 11331312211020 in words is "eleven trillion, three hundred thirty-one billion, three hundred twelve million, two hundred eleven thousand, twenty".