30212165145 has 32 divisors (see below), whose sum is σ = 53876810880. Its totient is φ = 14367144960.

The previous prime is 30212165099. The next prime is 30212165153. The reversal of 30212165145 is 54156121203.

It is not a de Polignac number, because 30212165145 - 2¹⁰ = 30212164121 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3113026 + ... + 3122715.

It is an arithmetic number, because the mean of its divisors is an integer number (1683650340).

Almost surely, 2^30212165145 is an apocalyptic number.

It is an amenable number.

30212165145 is a deficient number, since it is larger than the sum of its proper divisors (23664645735).

30212165145 is a wasteful number, since it uses less digits than its factorization.

30212165145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6235785.

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 30212165145 its reverse (54156121203), we get a palindrome (84368286348).

The spelling of 30212165145 in words is "thirty billion, two hundred twelve million, one hundred sixty-five thousand, one hundred forty-five".