1340055421320 has 512 divisors, whose sum is σ = 5103404974080. Its totient is φ = 273424788480.

The previous prime is 1340055421303. The next prime is 1340055421333. The reversal of 1340055421320 is 231245500431.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 128070409 + ... + 128080871.

It is an arithmetic number, because the mean of its divisors is an integer number (9967587840).

Almost surely, 2^{1340055421320} is an apocalyptic number.

1340055421320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1340055421320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2551702487040).

1340055421320 is an abundant number, since it is smaller than the sum of its proper divisors (3763349552760).

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

1340055421320 is a wasteful number, since it uses less digits than its factorization.

1340055421320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10745 (or 10741 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The spelling of 1340055421320 in words is "one trillion, three hundred forty billion, fifty-five million, four hundred twenty-one thousand, three hundred twenty".