17990632241123 has 2 divisors, whose sum is σ = 17990632241124. Its totient is φ = 17990632241122.

The previous prime is 17990632241117. The next prime is 17990632241143. The reversal of 17990632241123 is 32114223609971.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 17990632241123 - 2²² = 17990628046819 is a prime.

It is a super-2 number, since 2×17990632241123² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (17990632241143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8995316120561 + 8995316120562.

It is an arithmetic number, because the mean of its divisors is an integer number (8995316120562).

Almost surely, 2^{17990632241123} is an apocalyptic number.

17990632241123 is a deficient number, since it is larger than the sum of its proper divisors (1).

17990632241123 is an equidigital number, since it uses as much as digits as its factorization.

17990632241123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 979776, while the sum is 50.

The spelling of 17990632241123 in words is "seventeen trillion, nine hundred ninety billion, six hundred thirty-two million, two hundred forty-one thousand, one hundred twenty-three".