1331013331020 has 24 divisors (see below), whose sum is σ = 3726837327024. Its totient is φ = 354936888256.

The previous prime is 1331013331013. The next prime is 1331013331031. The reversal of 1331013331020 is 201333101331.

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, 11091777699 + ... + 11091777818.

It is an arithmetic number, because the mean of its divisors is an integer number (155284888626).

Almost surely, 2^{1331013331020} is an apocalyptic number.

1331013331020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331013331020 is an abundant number, since it is smaller than the sum of its proper divisors (2395823996004).

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

1331013331020 is a wasteful number, since it uses less digits than its factorization.

1331013331020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22183555529 (or 22183555527 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 1331013331020 its reverse (201333101331), we get a palindrome (1532346432351).

The spelling of 1331013331020 in words is "one trillion, three hundred thirty-one billion, thirteen million, three hundred thirty-one thousand, twenty".