30212611990 has 96 divisors (see below), whose sum is σ = 63640422144. Its totient is φ = 10238645760.

The previous prime is 30212611967. The next prime is 30212612047. The reversal of 30212611990 is 9911621203.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3269757 + ... + 3278983.

It is an arithmetic number, because the mean of its divisors is an integer number (662921064).

Almost surely, 2^30212611990 is an apocalyptic number.

30212611990 is an abundant number, since it is smaller than the sum of its proper divisors (33427810154).

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

30212611990 is a wasteful number, since it uses less digits than its factorization.

30212611990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9382 (or 9365 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 34.

The spelling of 30212611990 in words is "thirty billion, two hundred twelve million, six hundred eleven thousand, nine hundred ninety".