999998835009131 has 2 divisors, whose sum is σ = 999998835009132. Its totient is φ = 999998835009130.

The previous prime is 999998835009091. The next prime is 999998835009143. The reversal of 999998835009131 is 131900538899999.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 999998835009131 - 2¹⁸ = 999998834746987 is a prime.

It is a super-2 number, since 2×999998835009131² (a number of 31 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 999998835009131.

It is not a weakly prime, because it can be changed into another prime (999998835002131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499999417504565 + 499999417504566.

It is an arithmetic number, because the mean of its divisors is an integer number (499999417504566).

Almost surely, 2^{999998835009131} is an apocalyptic number.

999998835009131 is a deficient number, since it is larger than the sum of its proper divisors (1).

999998835009131 is an equidigital number, since it uses as much as digits as its factorization.

999998835009131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1530550080, while the sum is 83.

The spelling of 999998835009131 in words is "nine hundred ninety-nine trillion, nine hundred ninety-eight billion, eight hundred thirty-five million, nine thousand, one hundred thirty-one".