11111234123400 has 96 divisors (see below), whose sum is σ = 35942426948160. Its totient is φ = 2834169859840.

The previous prime is 11111234123399. The next prime is 11111234123413. The reversal of 11111234123400 is 432143211111.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 402567147 + ... + 402594746.

It is an arithmetic number, because the mean of its divisors is an integer number (374400280710).

Almost surely, 2^{11111234123400} is an apocalyptic number.

11111234123400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11111234123400 is an abundant number, since it is smaller than the sum of its proper divisors (24831192824760).

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

11111234123400 is a wasteful number, since it uses less digits than its factorization.

11111234123400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805161935 (or 805161926 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 11111234123400 its reverse (432143211111), we get a palindrome (11543377334511).

The spelling of 11111234123400 in words is "eleven trillion, one hundred eleven billion, two hundred thirty-four million, one hundred twenty-three thousand, four hundred".