1143321550400 has 42 divisors (see below), whose sum is σ = 2813285593890. Its totient is φ = 457328619520.

The previous prime is 1143321550373. The next prime is 1143321550429. The reversal of 1143321550400 is 40551233411.

It can be written as a sum of positive squares in 3 ways, for example, as 134389694464 + 1008931855936 = 366592^2 + 1004456^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 357286385 + ... + 357289584.

Almost surely, 2^{1143321550400} is an apocalyptic number.

1143321550400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1143321550400 is an abundant number, since it is smaller than the sum of its proper divisors (1669964043490).

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

1143321550400 is an equidigital number, since it uses as much as digits as its factorization.

1143321550400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714575991 (or 714575976 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 1143321550400 its reverse (40551233411), we get a palindrome (1183872783811).

The spelling of 1143321550400 in words is "one trillion, one hundred forty-three billion, three hundred twenty-one million, five hundred fifty thousand, four hundred".