1131101220020 has 24 divisors (see below), whose sum is σ = 2375337291264. Its totient is φ = 452435777696.

The previous prime is 1131101220001. The next prime is 1131101220031. The reversal of 1131101220020 is 200221011311.

It is a junction number, because it is equal to n+sod(n) for n = 1131101219977 and 1131101220004.

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, 2183297 + ... + 2651223.

It is an arithmetic number, because the mean of its divisors is an integer number (98972387136).

Almost surely, 2^{1131101220020} is an apocalyptic number.

1131101220020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131101220020 is an abundant number, since it is smaller than the sum of its proper divisors (1244236071244).

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

1131101220020 is a wasteful number, since it uses less digits than its factorization.

1131101220020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588799 (or 588797 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1131101220020 its reverse (200221011311), we get a palindrome (1331322231331).

The spelling of 1131101220020 in words is "one trillion, one hundred thirty-one billion, one hundred one million, two hundred twenty thousand, twenty".