1209623113 has 8 divisors (see below), whose sum is σ = 1215967680. Its totient is φ = 1203288240.

The previous prime is 1209623101. The next prime is 1209623189. The reversal of 1209623113 is 3113269021.

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 1209623113 - 2¹³ = 1209614921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1209623713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 476658 + ... + 479188.

It is an arithmetic number, because the mean of its divisors is an integer number (151995960).

Almost surely, 2^1209623113 is an apocalyptic number.

It is an amenable number.

1209623113 is a deficient number, since it is larger than the sum of its proper divisors (6344567).

1209623113 is a wasteful number, since it uses less digits than its factorization.

1209623113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4847.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 1209623113 is about 34779.6364702106. The cubic root of 1209623113 is about 1065.4915884650.

The spelling of 1209623113 in words is "one billion, two hundred nine million, six hundred twenty-three thousand, one hundred thirteen".