1331413440220 has 24 divisors (see below), whose sum is σ = 2960436944304. Its totient is φ = 501238000896.

The previous prime is 1331413440209. The next prime is 1331413440233. The reversal of 1331413440220 is 220443141331.

It is a happy number.

It is a congruent number.

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, 1957960602 + ... + 1957961281.

It is an arithmetic number, because the mean of its divisors is an integer number (123351539346).

Almost surely, 2^{1331413440220} is an apocalyptic number.

1331413440220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331413440220 is an abundant number, since it is smaller than the sum of its proper divisors (1629023504084).

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

1331413440220 is a wasteful number, since it uses less digits than its factorization.

1331413440220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3915921909 (or 3915921907 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 1331413440220 its reverse (220443141331), we get a palindrome (1551856581551).

The spelling of 1331413440220 in words is "one trillion, three hundred thirty-one billion, four hundred thirteen million, four hundred forty thousand, two hundred twenty".