1101321212020 has 24 divisors (see below), whose sum is σ = 2318294311200. Its totient is φ = 439477100832.

The previous prime is 1101321211997. The next prime is 1101321212071. The reversal of 1101321212020 is 202121231011.

It is a junction number, because it is equal to n+sod(n) for n = 1101321211985 and 1101321212003.

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, 65702910 + ... + 65719669.

It is an arithmetic number, because the mean of its divisors is an integer number (96595596300).

Almost surely, 2^{1101321212020} is an apocalyptic number.

1101321212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1101321212020 is an abundant number, since it is smaller than the sum of its proper divisors (1216973099180).

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

1101321212020 is a wasteful number, since it uses less digits than its factorization.

1101321212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131423007 (or 131423005 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1101321212020 its reverse (202121231011), we get a palindrome (1303442443031).

The spelling of 1101321212020 in words is "one trillion, one hundred one billion, three hundred twenty-one million, two hundred twelve thousand, twenty".