11910300921 has 12 divisors (see below), whose sum is σ = 17244637540. Its totient is φ = 7921337760.

The previous prime is 11910300877. The next prime is 11910300923. The reversal of 11910300921 is 12900301911.

It can be written as a sum of positive squares in 2 ways, for example, as 1065369600 + 10844931321 = 32640^2 + 104139^2 .

It is not a de Polignac number, because 11910300921 - 2¹⁷ = 11910169849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11910300923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1567906 + ... + 1575483.

Almost surely, 2^11910300921 is an apocalyptic number.

It is an amenable number.

11910300921 is a deficient number, since it is larger than the sum of its proper divisors (5334336619).

11910300921 is a wasteful number, since it uses less digits than its factorization.

11910300921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3143816 (or 3143813 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 27.

The spelling of 11910300921 in words is "eleven billion, nine hundred ten million, three hundred thousand, nine hundred twenty-one".