11351105421 has 32 divisors (see below), whose sum is σ = 16201555968. Its totient is φ = 7055968320.

The previous prime is 11351105401. The next prime is 11351105449. The reversal of 11351105421 is 12450115311.

It is not a de Polignac number, because 11351105421 - 2²² = 11346911117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11351105391 and 11351105400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11351105401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 338410 + ... + 370436.

It is an arithmetic number, because the mean of its divisors is an integer number (506298624).

Almost surely, 2^11351105421 is an apocalyptic number.

It is an amenable number.

11351105421 is a deficient number, since it is larger than the sum of its proper divisors (4850450547).

11351105421 is a wasteful number, since it uses less digits than its factorization.

11351105421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32201.

The product of its (nonzero) digits is 600, while the sum is 24.

The spelling of 11351105421 in words is "eleven billion, three hundred fifty-one million, one hundred five thousand, four hundred twenty-one".