30042145155 has 64 divisors (see below), whose sum is σ = 53905720320. Its totient is φ = 14163609600.

The previous prime is 30042145141. The next prime is 30042145169. The reversal of 30042145155 is 55154124003.

30042145155 = T₂₉₀₅₅ + T₂₉₀₅₆ + ... + T₂₉₁₂₅.

It is an interprime number because it is at equal distance from previous prime (30042145141) and next prime (30042145169).

It is not a de Polignac number, because 30042145155 - 2¹¹ = 30042143107 is a prime.

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 63 ways as a sum of consecutive naturals, for example, 837631 + ... + 872759.

It is an arithmetic number, because the mean of its divisors is an integer number (842276880).

Almost surely, 2^30042145155 is an apocalyptic number.

30042145155 is a deficient number, since it is larger than the sum of its proper divisors (23863575165).

30042145155 is a wasteful number, since it uses less digits than its factorization.

30042145155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35292.

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 30042145155 its reverse (55154124003), we get a palindrome (85196269158).

The spelling of 30042145155 in words is "thirty billion, forty-two million, one hundred forty-five thousand, one hundred fifty-five".