99430392071 has 4 divisors (see below), whose sum is σ = 100213308672. Its totient is φ = 98647475472.

The previous prime is 99430392067. The next prime is 99430392091. The reversal of 99430392071 is 17029303499.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17029303499 = 13 ⋅1309946423.

It is a cyclic number.

It is not a de Polignac number, because 99430392071 - 2² = 99430392067 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99430392011) 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, 391458110 + ... + 391458363.

It is an arithmetic number, because the mean of its divisors is an integer number (25053327168).

Almost surely, 2^99430392071 is an apocalyptic number.

99430392071 is a deficient number, since it is larger than the sum of its proper divisors (782916601).

99430392071 is a wasteful number, since it uses less digits than its factorization.

99430392071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782916600.

The product of its (nonzero) digits is 367416, while the sum is 47.

The spelling of 99430392071 in words is "ninety-nine billion, four hundred thirty million, three hundred ninety-two thousand, seventy-one".