2381479121 has 4 divisors (see below), whose sum is σ = 2721690432. Its totient is φ = 2041267812.

The previous prime is 2381479103. The next prime is 2381479123. The reversal of 2381479121 is 1219741832.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2381479121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2381479123) 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, 170105645 + ... + 170105658.

It is an arithmetic number, because the mean of its divisors is an integer number (680422608).

Almost surely, 2^2381479121 is an apocalyptic number.

It is an amenable number.

2381479121 is a deficient number, since it is larger than the sum of its proper divisors (340211311).

2381479121 is an equidigital number, since it uses as much as digits as its factorization.

2381479121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340211310.

The product of its digits is 24192, while the sum is 38.

The square root of 2381479121 is about 48800.4008282719. The cubic root of 2381479121 is about 1335.4129786963.

The spelling of 2381479121 in words is "two billion, three hundred eighty-one million, four hundred seventy-nine thousand, one hundred twenty-one".