1231168069 has 8 divisors (see below), whose sum is σ = 1271444480. Its totient is φ = 1190926800.

The previous prime is 1231168031. The next prime is 1231168091. The reversal of 1231168069 is 9608611321.

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 1231168069 - 2¹¹ = 1231166021 is a prime.

It is a super-2 number, since 2×1231168069² = 3031549628250377522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231168019) 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, 75367 + ... + 90235.

It is an arithmetic number, because the mean of its divisors is an integer number (158930560).

Almost surely, 2^1231168069 is an apocalyptic number.

It is an amenable number.

1231168069 is a deficient number, since it is larger than the sum of its proper divisors (40276411).

1231168069 is a wasteful number, since it uses less digits than its factorization.

1231168069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17571.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 1231168069 is about 35088.0046312126. The cubic root of 1231168069 is about 1071.7803269736.

The spelling of 1231168069 in words is "one billion, two hundred thirty-one million, one hundred sixty-eight thousand, sixty-nine".