1331101203020 has 24 divisors (see below), whose sum is σ = 2798173685664. Its totient is φ = 531895498496.

The previous prime is 1331101202989. The next prime is 1331101203049. The reversal of 1331101203020 is 203021011331.

It is a self number, because there is not a number n which added to its sum of digits gives 1331101203020.

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, 34041392 + ... + 34080471.

It is an arithmetic number, because the mean of its divisors is an integer number (116590570236).

Almost surely, 2^{1331101203020} is an apocalyptic number.

1331101203020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331101203020 is an abundant number, since it is smaller than the sum of its proper divisors (1467072482644).

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

1331101203020 is a wasteful number, since it uses less digits than its factorization.

1331101203020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68122849 (or 68122847 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 1331101203020 its reverse (203021011331), we get a palindrome (1534122214351).

The spelling of 1331101203020 in words is "one trillion, three hundred thirty-one billion, one hundred one million, two hundred three thousand, twenty".