23212454400155 has 16 divisors (see below), whose sum is σ = 27979509770400. Its totient is φ = 18486937497600.

The previous prime is 23212454400139. The next prime is 23212454400181. The reversal of 23212454400155 is 55100445421232.

It is not a de Polignac number, because 23212454400155 - 2⁴ = 23212454400139 is a prime.

It is a super-3 number, since 3×23212454400155³ (a number of 41 digits) contains 333 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 9937376 + ... + 12048914.

It is an arithmetic number, because the mean of its divisors is an integer number (1748719360650).

Almost surely, 2^{23212454400155} is an apocalyptic number.

23212454400155 is a deficient number, since it is larger than the sum of its proper divisors (4767055370245).

23212454400155 is a wasteful number, since it uses less digits than its factorization.

23212454400155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2121374.

The product of its (nonzero) digits is 192000, while the sum is 38.

Adding to 23212454400155 its reverse (55100445421232), we get a palindrome (78312899821387).

The spelling of 23212454400155 in words is "twenty-three trillion, two hundred twelve billion, four hundred fifty-four million, four hundred thousand, one hundred fifty-five".