11231452515 has 32 divisors (see below), whose sum is σ = 18417208320. Its totient is φ = 5842976256.

The previous prime is 11231452511. The next prime is 11231452559. The reversal of 11231452515 is 51525413211.

It is not a de Polignac number, because 11231452515 - 2² = 11231452511 is a prime.

It is a super-2 number, since 2×11231452515² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11231452511) 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 31 ways as a sum of consecutive naturals, for example, 41259 + ... + 155451.

It is an arithmetic number, because the mean of its divisors is an integer number (575537760).

Almost surely, 2^11231452515 is an apocalyptic number.

11231452515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11231452515 is a deficient number, since it is larger than the sum of its proper divisors (7185755805).

11231452515 is a wasteful number, since it uses less digits than its factorization.

11231452515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114363.

The product of its digits is 6000, while the sum is 30.

Adding to 11231452515 its reverse (51525413211), we get a palindrome (62756865726).

The spelling of 11231452515 in words is "eleven billion, two hundred thirty-one million, four hundred fifty-two thousand, five hundred fifteen".