30278348312 has 16 divisors (see below), whose sum is σ = 56775767400. Its totient is φ = 15138143680.

The previous prime is 30278348311. The next prime is 30278348357. The reversal of 30278348312 is 21384387203.

It is a super-3 number, since 3×30278348312³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30278348312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30278348311) 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, 4139 + ... + 246117.

Almost surely, 2^30278348312 is an apocalyptic number.

It is an amenable number.

30278348312 is a deficient number, since it is larger than the sum of its proper divisors (26497419088).

30278348312 is a wasteful number, since it uses less digits than its factorization.

30278348312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257626 (or 257622 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 41.

The spelling of 30278348312 in words is "thirty billion, two hundred seventy-eight million, three hundred forty-eight thousand, three hundred twelve".