31000550230159 has 2 divisors, whose sum is σ = 31000550230160. Its totient is φ = 31000550230158.

The previous prime is 31000550230141. The next prime is 31000550230229. The reversal of 31000550230159 is 95103205500013.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31000550230159 - 2¹¹ = 31000550228111 is a prime.

It is a super-2 number, since 2×31000550230159² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31000580230159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15500275115079 + 15500275115080.

It is an arithmetic number, because the mean of its divisors is an integer number (15500275115080).

Almost surely, 2^{31000550230159} is an apocalyptic number.

31000550230159 is a deficient number, since it is larger than the sum of its proper divisors (1).

31000550230159 is an equidigital number, since it uses as much as digits as its factorization.

31000550230159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20250, while the sum is 34.

The spelling of 31000550230159 in words is "thirty-one trillion, five hundred fifty million, two hundred thirty thousand, one hundred fifty-nine".