11512329451 has 12 divisors (see below), whose sum is σ = 13425312600. Its totient is φ = 9843086400.

The previous prime is 11512329427. The next prime is 11512329503. The reversal of 11512329451 is 15492321511.

11512329451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11512329451 - 2¹⁵ = 11512296683 is a prime.

It is a super-2 number, since 2×11512329451² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11512323451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 273301 + ... + 312598.

It is an arithmetic number, because the mean of its divisors is an integer number (1118776050).

Almost surely, 2^11512329451 is an apocalyptic number.

11512329451 is a deficient number, since it is larger than the sum of its proper divisors (1912983149).

11512329451 is an equidigital number, since it uses as much as digits as its factorization.

11512329451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586314 (or 586307 counting only the distinct ones).

The product of its digits is 10800, while the sum is 34.

The spelling of 11512329451 in words is "eleven billion, five hundred twelve million, three hundred twenty-nine thousand, four hundred fifty-one".