30615265136121 has 16 divisors (see below), whose sum is σ = 41469718914624. Its totient is φ = 20086083857664.

The previous prime is 30615265136107. The next prime is 30615265136143. The reversal of 30615265136121 is 12163156251603.

It is a happy number.

It is not a de Polignac number, because 30615265136121 - 2¹⁰ = 30615265135097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30615265136191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73516836 + ... + 73932101.

It is an arithmetic number, because the mean of its divisors is an integer number (2591857432164).

Almost surely, 2^{30615265136121} is an apocalyptic number.

It is an amenable number.

30615265136121 is a deficient number, since it is larger than the sum of its proper divisors (10854453778503).

30615265136121 is a wasteful number, since it uses less digits than its factorization.

30615265136121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147450040.

The product of its (nonzero) digits is 194400, while the sum is 42.

The spelling of 30615265136121 in words is "thirty trillion, six hundred fifteen billion, two hundred sixty-five million, one hundred thirty-six thousand, one hundred twenty-one".