16434011121 has 16 divisors (see below), whose sum is σ = 24675115008. Its totient is φ = 9638715600.

The previous prime is 16434011003. The next prime is 16434011147. The reversal of 16434011121 is 12111043461.

It is a happy number.

It is not a de Polignac number, because 16434011121 - 2¹⁰ = 16434010097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16434011091 and 16434011100.

It is not an unprimeable number, because it can be changed into a prime (16434061121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8031241 + ... + 8033286.

It is an arithmetic number, because the mean of its divisors is an integer number (1542194688).

Almost surely, 2^16434011121 is an apocalyptic number.

16434011121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16434011121 is a deficient number, since it is larger than the sum of its proper divisors (8241103887).

16434011121 is a wasteful number, since it uses less digits than its factorization.

16434011121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16064572.

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

Adding to 16434011121 its reverse (12111043461), we get a palindrome (28545054582).

The spelling of 16434011121 in words is "sixteen billion, four hundred thirty-four million, eleven thousand, one hundred twenty-one".