11231644245 has 16 divisors (see below), whose sum is σ = 18187146432. Its totient is φ = 5918038400.

The previous prime is 11231644231. The next prime is 11231644267. The reversal of 11231644245 is 54244613211.

It is a happy number.

It is not a de Polignac number, because 11231644245 - 2¹⁷ = 11231513173 is a prime.

It is a super-2 number, since 2×11231644245² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4509456 + ... + 4511945.

It is an arithmetic number, because the mean of its divisors is an integer number (1136696652).

Almost surely, 2^11231644245 is an apocalyptic number.

11231644245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11231644245 is a deficient number, since it is larger than the sum of its proper divisors (6955502187).

11231644245 is an equidigital number, since it uses as much as digits as its factorization.

11231644245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9021492.

The product of its digits is 23040, while the sum is 33.

The spelling of 11231644245 in words is "eleven billion, two hundred thirty-one million, six hundred forty-four thousand, two hundred forty-five".