79123431001 has 8 divisors (see below), whose sum is σ = 79322813640. Its totient is φ = 78924125952.

The previous prime is 79123430999. The next prime is 79123431011. The reversal of 79123431001 is 10013432197.

It can be written as a sum of positive squares in 4 ways, for example, as 1167998976 + 77955432025 = 34176^2 + 279205^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 79123431001 - 2¹ = 79123430999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79123431011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2396715 + ... + 2429503.

It is an arithmetic number, because the mean of its divisors is an integer number (9915351705).

Almost surely, 2^79123431001 is an apocalyptic number.

It is an amenable number.

79123431001 is a deficient number, since it is larger than the sum of its proper divisors (199382639).

79123431001 is a wasteful number, since it uses less digits than its factorization.

79123431001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38795.

The product of its (nonzero) digits is 4536, while the sum is 31.

Adding to 79123431001 its reverse (10013432197), we get a palindrome (89136863198).

The spelling of 79123431001 in words is "seventy-nine billion, one hundred twenty-three million, four hundred thirty-one thousand, one".