1321440425300 has 36 divisors (see below), whose sum is σ = 2870017307136. Its totient is φ = 528116892000.

The previous prime is 1321440425269. The next prime is 1321440425303. The reversal of 1321440425300 is 35240441231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321440425303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5625302 + ... + 5855501.

It is an arithmetic number, because the mean of its divisors is an integer number (79722702976).

Almost surely, 2^{1321440425300} is an apocalyptic number.

1321440425300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1321440425300 is an abundant number, since it is smaller than the sum of its proper divisors (1548576881836).

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

1321440425300 is a wasteful number, since it uses less digits than its factorization.

1321440425300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11481968 (or 11481961 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 1321440425300 its reverse (35240441231), we get a palindrome (1356680866531).

The spelling of 1321440425300 in words is "one trillion, three hundred twenty-one billion, four hundred forty million, four hundred twenty-five thousand, three hundred".