12401161249 has 4 divisors (see below), whose sum is σ = 12472844436. Its totient is φ = 12329478064.

The previous prime is 12401161247. The next prime is 12401161259. The reversal of 12401161249 is 94216110421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10828483600 + 1572677649 = 104060^2 + 39657^2 .

It is a cyclic number.

It is not a de Polignac number, because 12401161249 - 2¹ = 12401161247 is a prime.

It is a super-3 number, since 3×12401161249³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12401161249.

It is not an unprimeable number, because it can be changed into a prime (12401161247) 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, 35841334 + ... + 35841679.

It is an arithmetic number, because the mean of its divisors is an integer number (3118211109).

Almost surely, 2^12401161249 is an apocalyptic number.

It is an amenable number.

12401161249 is a deficient number, since it is larger than the sum of its proper divisors (71683187).

12401161249 is an equidigital number, since it uses as much as digits as its factorization.

12401161249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71683186.

The product of its (nonzero) digits is 3456, while the sum is 31.

The spelling of 12401161249 in words is "twelve billion, four hundred one million, one hundred sixty-one thousand, two hundred forty-nine".