30312205036 has 6 divisors (see below), whose sum is σ = 53046358820. Its totient is φ = 15156102516.

The previous prime is 30312205031. The next prime is 30312205039. The reversal of 30312205036 is 63050221303.

It is a happy number.

It is a super-2 number, since 2×30312205036² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30312205036.

It is not an unprimeable number, because it can be changed into a prime (30312205031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3789025626 + ... + 3789025633.

Almost surely, 2^30312205036 is an apocalyptic number.

It is an amenable number.

30312205036 is a deficient number, since it is larger than the sum of its proper divisors (22734153784).

30312205036 is a wasteful number, since it uses less digits than its factorization.

30312205036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7578051263 (or 7578051261 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 25.

Adding to 30312205036 its reverse (63050221303), we get a palindrome (93362426339).

The spelling of 30312205036 in words is "thirty billion, three hundred twelve million, two hundred five thousand, thirty-six".