11511325123 has 8 divisors (see below), whose sum is σ = 12118821120. Its totient is φ = 10903992840.

The previous prime is 11511325121. The next prime is 11511325129. The reversal of 11511325123 is 32152311511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11511325123 - 2¹ = 11511325121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11511325121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119586 + ... + 193192.

It is an arithmetic number, because the mean of its divisors is an integer number (1514852640).

Almost surely, 2^11511325123 is an apocalyptic number.

11511325123 is a deficient number, since it is larger than the sum of its proper divisors (607495997).

11511325123 is an equidigital number, since it uses as much as digits as its factorization.

11511325123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81857.

The product of its digits is 900, while the sum is 25.

Adding to 11511325123 its reverse (32152311511), we get a palindrome (43663636634).

The spelling of 11511325123 in words is "eleven billion, five hundred eleven million, three hundred twenty-five thousand, one hundred twenty-three".