30291920212 has 12 divisors (see below), whose sum is σ = 53681884480. Its totient is φ = 14954238936.

The previous prime is 30291920209. The next prime is 30291920317. The reversal of 30291920212 is 21202919203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47929938 + ... + 47930569.

Almost surely, 2^30291920212 is an apocalyptic number.

It is an amenable number.

30291920212 is a deficient number, since it is larger than the sum of its proper divisors (23389964268).

30291920212 is a wasteful number, since it uses less digits than its factorization.

30291920212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95860590 (or 95860588 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The spelling of 30291920212 in words is "thirty billion, two hundred ninety-one million, nine hundred twenty thousand, two hundred twelve".