11746912321 has 4 divisors (see below), whose sum is σ = 11758418644. Its totient is φ = 11735406000.

The previous prime is 11746912277. The next prime is 11746912339. The reversal of 11746912321 is 12321964711.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12321964711 = 7 ⋅1760280673.

It can be written as a sum of positive squares in 2 ways, for example, as 5976990721 + 5769921600 = 77311^2 + 75960^2 .

It is a cyclic number.

It is not a de Polignac number, because 11746912321 - 2¹³ = 11746904129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11746912381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5751630 + ... + 5753671.

It is an arithmetic number, because the mean of its divisors is an integer number (2939604661).

Almost surely, 2^11746912321 is an apocalyptic number.

It is an amenable number.

11746912321 is a deficient number, since it is larger than the sum of its proper divisors (11506323).

11746912321 is a wasteful number, since it uses less digits than its factorization.

11746912321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11506322.

The product of its digits is 18144, while the sum is 37.

The spelling of 11746912321 in words is "eleven billion, seven hundred forty-six million, nine hundred twelve thousand, three hundred twenty-one".