131002320019 has 2 divisors, whose sum is σ = 131002320020. Its totient is φ = 131002320018.

The previous prime is 131002319963. The next prime is 131002320041. The reversal of 131002320019 is 910023200131.

It is an a-pointer prime, because the next prime (131002320041) can be obtained adding 131002320019 to its sum of digits (22).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131002320019 - 2⁹ = 131002319507 is a prime.

It is a super-2 number, since 2×131002320019² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (131002320089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65501160009 + 65501160010.

It is an arithmetic number, because the mean of its divisors is an integer number (65501160010).

Almost surely, 2^131002320019 is an apocalyptic number.

131002320019 is a deficient number, since it is larger than the sum of its proper divisors (1).

131002320019 is an equidigital number, since it uses as much as digits as its factorization.

131002320019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

The spelling of 131002320019 in words is "one hundred thirty-one billion, two million, three hundred twenty thousand, nineteen".