243102310155 has 32 divisors (see below), whose sum is σ = 446123243520. Its totient is φ = 125472157920.

The previous prime is 243102310141. The next prime is 243102310169. The reversal of 243102310155 is 551013201342.

243102310155 is a `hidden beast` number, since 24 + 310 + 2 + 310 + 15 + 5 = 666.

243102310155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (243102310141) and next prime (243102310169).

It is not a de Polignac number, because 243102310155 - 2⁵ = 243102310123 is a prime.

It is a super-2 number, since 2×243102310155² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 31 ways as a sum of consecutive naturals, for example, 29040297 + ... + 29048666.

It is an arithmetic number, because the mean of its divisors is an integer number (13941351360).

Almost surely, 2^243102310155 is an apocalyptic number.

243102310155 is a deficient number, since it is larger than the sum of its proper divisors (203020933365).

243102310155 is a wasteful number, since it uses less digits than its factorization.

243102310155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58089008 (or 58089002 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 243102310155 its reverse (551013201342), we get a palindrome (794115511497).

The spelling of 243102310155 in words is "two hundred forty-three billion, one hundred two million, three hundred ten thousand, one hundred fifty-five".