20430747113 has 4 divisors (see below), whose sum is σ = 23349425280. Its totient is φ = 17512068948.

The previous prime is 20430747107. The next prime is 20430747131. The reversal of 20430747113 is 31174703402.

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: 31174703402 = 2 ⋅15587351701.

It is a cyclic number.

It is not a de Polignac number, because 20430747113 - 2⁴ = 20430747097 is a prime.

It is a super-3 number, since 3×20430747113³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20430747113.

It is not an unprimeable number, because it can be changed into a prime (20430747193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1459339073 + ... + 1459339086.

It is an arithmetic number, because the mean of its divisors is an integer number (5837356320).

Almost surely, 2^20430747113 is an apocalyptic number.

It is an amenable number.

20430747113 is a deficient number, since it is larger than the sum of its proper divisors (2918678167).

20430747113 is an equidigital number, since it uses as much as digits as its factorization.

20430747113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2918678166.

The product of its (nonzero) digits is 14112, while the sum is 32.

The spelling of 20430747113 in words is "twenty billion, four hundred thirty million, seven hundred forty-seven thousand, one hundred thirteen".