30121613412 has 24 divisors (see below), whose sum is σ = 76673198112. Its totient is φ = 9127761600.

The previous prime is 30121613399. The next prime is 30121613413. The reversal of 30121613412 is 21431612103.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (30121613413) 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, 114096889 + ... + 114097152.

It is an arithmetic number, because the mean of its divisors is an integer number (3194716588).

Almost surely, 2^30121613412 is an apocalyptic number.

It is an amenable number.

30121613412 is an abundant number, since it is smaller than the sum of its proper divisors (46551584700).

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

30121613412 is a wasteful number, since it uses less digits than its factorization.

30121613412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228194059 (or 228194057 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The spelling of 30121613412 in words is "thirty billion, one hundred twenty-one million, six hundred thirteen thousand, four hundred twelve".