30230711978 has 8 divisors (see below), whose sum is σ = 45347101668. Its totient is φ = 15115011424.

The previous prime is 30230711971. The next prime is 30230711983. The reversal of 30230711978 is 87911703203.

It can be written as a sum of positive squares in 2 ways, for example, as 24371268769 + 5859443209 = 156113^2 + 76547^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (30230711971) 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, 43301 + ... + 249672.

Almost surely, 2^30230711978 is an apocalyptic number.

30230711978 is a deficient number, since it is larger than the sum of its proper divisors (15116389690).

30230711978 is a wasteful number, since it uses less digits than its factorization.

30230711978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344568.

The product of its (nonzero) digits is 63504, while the sum is 41.

The spelling of 30230711978 in words is "thirty billion, two hundred thirty million, seven hundred eleven thousand, nine hundred seventy-eight".