1343240120400 has 60 divisors (see below), whose sum is σ = 4302845856192. Its totient is φ = 358197365120.

The previous prime is 1343240120399. The next prime is 1343240120407. The reversal of 1343240120400 is 40210423431.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1343240120407) 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, 559682184 + ... + 559684583.

Almost surely, 2^{1343240120400} is an apocalyptic number.

1343240120400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1343240120400 is an abundant number, since it is smaller than the sum of its proper divisors (2959605735792).

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

1343240120400 is a wasteful number, since it uses less digits than its factorization.

1343240120400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119366788 (or 1119366777 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 1343240120400 its reverse (40210423431), we get a palindrome (1383450543831).

The spelling of 1343240120400 in words is "one trillion, three hundred forty-three billion, two hundred forty million, one hundred twenty thousand, four hundred".