13435543123400 has 48 divisors (see below), whose sum is σ = 32881723969200. Its totient is φ = 5091363708480.

The previous prime is 13435543123307. The next prime is 13435543123489. The reversal of 13435543123400 is 432134553431.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1767830822 + ... + 1767838421.

It is an arithmetic number, because the mean of its divisors is an integer number (685035916025).

Almost surely, 2^{13435543123400} is an apocalyptic number.

13435543123400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13435543123400 is an abundant number, since it is smaller than the sum of its proper divisors (19446180845800).

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

13435543123400 is a wasteful number, since it uses less digits than its factorization.

13435543123400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3535669278 (or 3535669269 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 38.

Adding to 13435543123400 its reverse (432134553431), we get a palindrome (13867677676831).

The spelling of 13435543123400 in words is "thirteen trillion, four hundred thirty-five billion, five hundred forty-three million, one hundred twenty-three thousand, four hundred".