11531120736446 has 16 divisors (see below), whose sum is σ = 18032871575664. Its totient is φ = 5525223273024.

The previous prime is 11531120736337. The next prime is 11531120736469. The reversal of 11531120736446 is 64463702113511.

It is a junction number, because it is equal to n+sod(n) for n = 11531120736397 and 11531120736406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1264927511 + ... + 1264936626.

It is an arithmetic number, because the mean of its divisors is an integer number (1127054473479).

Almost surely, 2^{11531120736446} is an apocalyptic number.

11531120736446 is a deficient number, since it is larger than the sum of its proper divisors (6501750839218).

11531120736446 is a wasteful number, since it uses less digits than its factorization.

11531120736446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2529864235.

The product of its (nonzero) digits is 362880, while the sum is 44.

Adding to 11531120736446 its reverse (64463702113511), we get a palindrome (75994822849957).

The spelling of 11531120736446 in words is "eleven trillion, five hundred thirty-one billion, one hundred twenty million, seven hundred thirty-six thousand, four hundred forty-six".