30115121255 has 8 divisors (see below), whose sum is σ = 36819997632. Its totient is φ = 23637528928.

The previous prime is 30115121243. The next prime is 30115121269. The reversal of 30115121255 is 55212151103.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30115121255 - 2¹² = 30115117159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56820719 + ... + 56821248.

It is an arithmetic number, because the mean of its divisors is an integer number (4602499704).

Almost surely, 2^30115121255 is an apocalyptic number.

30115121255 is a deficient number, since it is larger than the sum of its proper divisors (6704876377).

30115121255 is a wasteful number, since it uses less digits than its factorization.

30115121255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113642025.

The product of its (nonzero) digits is 1500, while the sum is 26.

Adding to 30115121255 its reverse (55212151103), we get a palindrome (85327272358).

The spelling of 30115121255 in words is "thirty billion, one hundred fifteen million, one hundred twenty-one thousand, two hundred fifty-five".