23521245012155 has 16 divisors (see below), whose sum is σ = 30792315725568. Its totient is φ = 17105877948000.

The previous prime is 23521245012113. The next prime is 23521245012203. The reversal of 23521245012155 is 55121054212532.

It is not a de Polignac number, because 23521245012155 - 2²⁴ = 23521228234939 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4050461 + ... + 7965470.

It is an arithmetic number, because the mean of its divisors is an integer number (1924519732848).

Almost surely, 2^{23521245012155} is an apocalyptic number.

23521245012155 is a deficient number, since it is larger than the sum of its proper divisors (7271070713413).

23521245012155 is a wasteful number, since it uses less digits than its factorization.

23521245012155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12051538.

The product of its (nonzero) digits is 120000, while the sum is 38.

Adding to 23521245012155 its reverse (55121054212532), we get a palindrome (78642299224687).

The spelling of 23521245012155 in words is "twenty-three trillion, five hundred twenty-one billion, two hundred forty-five million, twelve thousand, one hundred fifty-five".