10031219999 has 4 divisors (see below), whose sum is σ = 10033827336. Its totient is φ = 10028612664.

The previous prime is 10031219963. The next prime is 10031220013. The reversal of 10031219999 is 99991213001.

10031219999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99991213001 = 28297 ⋅3533633.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10031219999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10031210999) 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 3 ways as a sum of consecutive naturals, for example, 1297889 + ... + 1305594.

It is an arithmetic number, because the mean of its divisors is an integer number (2508456834).

Almost surely, 2^10031219999 is an apocalyptic number.

10031219999 is a deficient number, since it is larger than the sum of its proper divisors (2607337).

10031219999 is an equidigital number, since it uses as much as digits as its factorization.

10031219999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2607336.

The product of its (nonzero) digits is 39366, while the sum is 44.

The spelling of 10031219999 in words is "ten billion, thirty-one million, two hundred nineteen thousand, nine hundred ninety-nine".