30121000136 has 16 divisors (see below), whose sum is σ = 56510142000. Its totient is φ = 15051628944.

The previous prime is 30121000127. The next prime is 30121000139. The reversal of 30121000136 is 63100012103.

It is not an unprimeable number, because it can be changed into a prime (30121000139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1094450 + ... + 1121633.

It is an arithmetic number, because the mean of its divisors is an integer number (3531883875).

Almost surely, 2^30121000136 is an apocalyptic number.

It is an amenable number.

30121000136 is a deficient number, since it is larger than the sum of its proper divisors (26389141864).

30121000136 is a wasteful number, since it uses less digits than its factorization.

30121000136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2217788 (or 2217784 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 30121000136 its reverse (63100012103), we get a palindrome (93221012239).

The spelling of 30121000136 in words is "thirty billion, one hundred twenty-one million, one hundred thirty-six", and thus it is an aban number.