231106926195989 has 8 divisors (see below), whose sum is σ = 233228033690520. Its totient is φ = 228985834346496.

The previous prime is 231106926195961. The next prime is 231106926195997. The reversal of 231106926195989 is 989591629601132.

It can be written as a sum of positive squares in 4 ways, for example, as 134713223089 + 230972212972900 = 367033^2 + 15197770^2 .

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 231106926195989 - 2¹² = 231106926191893 is a prime.

It is a super-2 number, since 2×231106926195989² (a number of 30 digits) 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 (231106926195889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26875049 + ... + 34416305.

It is an arithmetic number, because the mean of its divisors is an integer number (29153504211315).

Almost surely, 2^{231106926195989} is an apocalyptic number.

It is an amenable number.

231106926195989 is a deficient number, since it is larger than the sum of its proper divisors (2121107494531).

231106926195989 is a wasteful number, since it uses less digits than its factorization.

231106926195989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7822519.

The product of its (nonzero) digits is 113374080, while the sum is 71.

The spelling of 231106926195989 in words is "two hundred thirty-one trillion, one hundred six billion, nine hundred twenty-six million, one hundred ninety-five thousand, nine hundred eighty-nine".