1102231321020 has 96 divisors (see below), whose sum is σ = 3433601586240. Its totient is φ = 293547997440.

The previous prime is 1102231321019. The next prime is 1102231321031. The reversal of 1102231321020 is 201231322011.

1102231321020 is a `hidden beast` number, since 110 + 2 + 231 + 321 + 0 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1102231320984 and 1102231321002.

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, 902871 + ... + 1737710.

It is an arithmetic number, because the mean of its divisors is an integer number (35766683190).

Almost surely, 2^{1102231321020} is an apocalyptic number.

1102231321020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1102231321020 is an abundant number, since it is smaller than the sum of its proper divisors (2331370265220).

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

1102231321020 is a wasteful number, since it uses less digits than its factorization.

1102231321020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2641372 (or 2641364 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1102231321020 its reverse (201231322011), we get a palindrome (1303462643031).

Subtracting from 1102231321020 its reverse (201231322011), we obtain a palindrome (900999999009).

The spelling of 1102231321020 in words is "one trillion, one hundred two billion, two hundred thirty-one million, three hundred twenty-one thousand, twenty".