11421621232 has 40 divisors (see below), whose sum is σ = 26162834400. Its totient is φ = 4726186752.

The previous prime is 11421621209. The next prime is 11421621251. The reversal of 11421621232 is 23212612411.

It is a junction number, because it is equal to n+sod(n) for n = 11421621197 and 11421621206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1755007 + ... + 1761502.

It is an arithmetic number, because the mean of its divisors is an integer number (654070860).

Almost surely, 2^11421621232 is an apocalyptic number.

It is an amenable number.

11421621232 is an abundant number, since it is smaller than the sum of its proper divisors (14741213168).

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

11421621232 is a wasteful number, since it uses less digits than its factorization.

11421621232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3516553 (or 3516547 counting only the distinct ones).

The product of its digits is 1152, while the sum is 25.

The spelling of 11421621232 in words is "eleven billion, four hundred twenty-one million, six hundred twenty-one thousand, two hundred thirty-two".