12261063254 has 16 divisors (see below), whose sum is σ = 20179538640. Its totient is φ = 5540993760.

The previous prime is 12261063251. The next prime is 12261063259. The reversal of 12261063254 is 45236016221.

It is a self number, because there is not a number n which added to its sum of digits gives 12261063254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12261063251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1606949 + ... + 1614560.

It is an arithmetic number, because the mean of its divisors is an integer number (1261221165).

Almost surely, 2^12261063254 is an apocalyptic number.

12261063254 is a deficient number, since it is larger than the sum of its proper divisors (7918475386).

12261063254 is a wasteful number, since it uses less digits than its factorization.

12261063254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3221695.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 12261063254 its reverse (45236016221), we get a palindrome (57497079475).

The spelling of 12261063254 in words is "twelve billion, two hundred sixty-one million, sixty-three thousand, two hundred fifty-four".