1021110131320 has 64 divisors (see below), whose sum is σ = 2351349997920. Its totient is φ = 398873739264.

The previous prime is 1021110131311. The next prime is 1021110131347. The reversal of 1021110131320 is 231310111201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1021110131294 and 1021110131303.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10092504 + ... + 10193176.

Almost surely, 2^{1021110131320} is an apocalyptic number.

1021110131320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021110131320 is an abundant number, since it is smaller than the sum of its proper divisors (1330239866600).

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

1021110131320 is a wasteful number, since it uses less digits than its factorization.

1021110131320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106624 (or 106620 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1021110131320 its reverse (231310111201), we get a palindrome (1252420242521).

The spelling of 1021110131320 in words is "one trillion, twenty-one billion, one hundred ten million, one hundred thirty-one thousand, three hundred twenty".