11403401418 has 24 divisors (see below), whose sum is σ = 26007758400. Its totient is φ = 3601074024.

The previous prime is 11403401411. The next prime is 11403401453. The reversal of 11403401418 is 81410430411.

It is a junction number, because it is equal to n+sod(n) for n = 11403401391 and 11403401400.

It is not an unprimeable number, because it can be changed into a prime (11403401411) 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, 16671298 + ... + 16671981.

It is an arithmetic number, because the mean of its divisors is an integer number (1083656600).

Almost surely, 2^11403401418 is an apocalyptic number.

11403401418 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11403401418 is an abundant number, since it is smaller than the sum of its proper divisors (14604356982).

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

11403401418 is a wasteful number, since it uses less digits than its factorization.

11403401418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33343306 (or 33343303 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

Adding to 11403401418 its reverse (81410430411), we get a palindrome (92813831829).

The spelling of 11403401418 in words is "eleven billion, four hundred three million, four hundred one thousand, four hundred eighteen".