11418374121 has 64 divisors (see below), whose sum is σ = 20308224000. Its totient is φ = 5527180800.

The previous prime is 11418374117. The next prime is 11418374129. The reversal of 11418374121 is 12147381411.

It is not a de Polignac number, because 11418374121 - 2² = 11418374117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (11418374129) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 246405 + ... + 289053.

It is an arithmetic number, because the mean of its divisors is an integer number (317316000).

Almost surely, 2^11418374121 is an apocalyptic number.

11418374121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11418374121 is a deficient number, since it is larger than the sum of its proper divisors (8889849879).

11418374121 is a wasteful number, since it uses less digits than its factorization.

11418374121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42750.

The product of its digits is 5376, while the sum is 33.

The spelling of 11418374121 in words is "eleven billion, four hundred eighteen million, three hundred seventy-four thousand, one hundred twenty-one".