1331401241020 has 48 divisors (see below), whose sum is σ = 2970053079840. Its totient is φ = 499600687104.

The previous prime is 1331401240991. The next prime is 1331401241029. The reversal of 1331401241020 is 201421041331.

It is a super-2 number, since 2×1331401241020² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1331401240982 and 1331401241000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331401241029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6273285 + ... + 6482044.

It is an arithmetic number, because the mean of its divisors is an integer number (61876105830).

Almost surely, 2^{1331401241020} is an apocalyptic number.

1331401241020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331401241020 is an abundant number, since it is smaller than the sum of its proper divisors (1638651838820).

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

1331401241020 is a wasteful number, since it uses less digits than its factorization.

1331401241020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12755662 (or 12755660 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1331401241020 its reverse (201421041331), we get a palindrome (1532822282351).

The spelling of 1331401241020 in words is "one trillion, three hundred thirty-one billion, four hundred one million, two hundred forty-one thousand, twenty".