30126663813 has 4 divisors (see below), whose sum is σ = 40168885088. Its totient is φ = 20084442540.

The previous prime is 30126663797. The next prime is 30126663817. The reversal of 30126663813 is 31836662103.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31836662103 = 3 ⋅10612220701.

It is not a de Polignac number, because 30126663813 - 2⁴ = 30126663797 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30126663817) 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, 5021110633 + ... + 5021110638.

It is an arithmetic number, because the mean of its divisors is an integer number (10042221272).

Almost surely, 2^30126663813 is an apocalyptic number.

It is an amenable number.

30126663813 is a deficient number, since it is larger than the sum of its proper divisors (10042221275).

30126663813 is a wasteful number, since it uses less digits than its factorization.

30126663813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10042221274.

The product of its (nonzero) digits is 93312, while the sum is 39.

The spelling of 30126663813 in words is "thirty billion, one hundred twenty-six million, six hundred sixty-three thousand, eight hundred thirteen".