31210001019 has 6 divisors (see below), whose sum is σ = 45081112596. Its totient is φ = 20806667340.

The previous prime is 31210000993. The next prime is 31210001063. The reversal of 31210001019 is 91010001213.

It is not a de Polignac number, because 31210001019 - 2⁷ = 31210000891 is a prime.

It is a super-2 number, since 2×31210001019² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31210000992 and 31210001010.

It is not an unprimeable number, because it can be changed into a prime (31210001419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1733888937 + ... + 1733888954.

It is an arithmetic number, because the mean of its divisors is an integer number (7513518766).

Almost surely, 2^31210001019 is an apocalyptic number.

31210001019 is a deficient number, since it is larger than the sum of its proper divisors (13871111577).

31210001019 is a wasteful number, since it uses less digits than its factorization.

31210001019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3467777897 (or 3467777894 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

The spelling of 31210001019 in words is "thirty-one billion, two hundred ten million, one thousand, nineteen".