23436004543129 has 32 divisors (see below), whose sum is σ = 25377122322720. Its totient is φ = 21562078003200.

The previous prime is 23436004543117. The next prime is 23436004543153. The reversal of 23436004543129 is 92134540063432.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 15371512105104 + 8064492438025 = 3920652^2 + 2839805^2 .

It is not a de Polignac number, because 23436004543129 - 2⁴³ = 14639911520921 is a prime.

It is a super-2 number, since 2×23436004543129² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23436004543429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 204286617 + ... + 204401305.

It is an arithmetic number, because the mean of its divisors is an integer number (793035072585).

Almost surely, 2^{23436004543129} is an apocalyptic number.

It is an amenable number.

23436004543129 is a deficient number, since it is larger than the sum of its proper divisors (1941117779591).

23436004543129 is a wasteful number, since it uses less digits than its factorization.

23436004543129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115981.

The product of its (nonzero) digits is 1866240, while the sum is 46.

The spelling of 23436004543129 in words is "twenty-three trillion, four hundred thirty-six billion, four million, five hundred forty-three thousand, one hundred twenty-nine".