30011211987 has 16 divisors (see below), whose sum is σ = 44598706560. Its totient is φ = 17839481472.

The previous prime is 30011211977. The next prime is 30011212027. The reversal of 30011211987 is 78911211003.

It is not a de Polignac number, because 30011211987 - 2¹⁰ = 30011210963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30011211947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15484693 + ... + 15486630.

It is an arithmetic number, because the mean of its divisors is an integer number (2787419160).

Almost surely, 2^30011211987 is an apocalyptic number.

30011211987 is a deficient number, since it is larger than the sum of its proper divisors (14587494573).

30011211987 is a wasteful number, since it uses less digits than its factorization.

30011211987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30971362.

The product of its (nonzero) digits is 3024, while the sum is 33.

The spelling of 30011211987 in words is "thirty billion, eleven million, two hundred eleven thousand, nine hundred eighty-seven".