11043498921 has 48 divisors (see below), whose sum is σ = 19248372864. Its totient is φ = 5571853056.

The previous prime is 11043498919. The next prime is 11043498929. The reversal of 11043498921 is 12989434011.

It is not a de Polignac number, because 11043498921 - 2¹ = 11043498919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11043498929) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 81676 + ... + 169581.

It is an arithmetic number, because the mean of its divisors is an integer number (401007768).

Almost surely, 2^11043498921 is an apocalyptic number.

It is an amenable number.

11043498921 is a deficient number, since it is larger than the sum of its proper divisors (8204873943).

11043498921 is a wasteful number, since it uses less digits than its factorization.

11043498921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251310 (or 251303 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The spelling of 11043498921 in words is "eleven billion, forty-three million, four hundred ninety-eight thousand, nine hundred twenty-one".