30155115012 has 24 divisors (see below), whose sum is σ = 76758474912. Its totient is φ = 9137913600.

The previous prime is 30155114993. The next prime is 30155115019. The reversal of 30155115012 is 21051155103.

It is a super-2 number, since 2×30155115012² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30155115019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114223789 + ... + 114224052.

It is an arithmetic number, because the mean of its divisors is an integer number (3198269788).

Almost surely, 2^30155115012 is an apocalyptic number.

It is an amenable number.

30155115012 is an abundant number, since it is smaller than the sum of its proper divisors (46603359900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30155115012 is a wasteful number, since it uses less digits than its factorization.

30155115012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228447859 (or 228447857 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 24.

The spelling of 30155115012 in words is "thirty billion, one hundred fifty-five million, one hundred fifteen thousand, twelve".