1021000000319 has 8 divisors (see below), whose sum is σ = 1106122526880. Its totient is φ = 936818054496.

The previous prime is 1021000000313. The next prime is 1021000000351. The reversal of 1021000000319 is 9130000001201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021000000319 is a prime.

It is a super-2 number, since 2×1021000000319² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1021000000297 and 1021000000306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021000000313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235142924 + ... + 235147265.

It is an arithmetic number, because the mean of its divisors is an integer number (138265315860).

Almost surely, 2^{1021000000319} is an apocalyptic number.

1021000000319 is a deficient number, since it is larger than the sum of its proper divisors (85122526561).

1021000000319 is a wasteful number, since it uses less digits than its factorization.

1021000000319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470290369.

The product of its (nonzero) digits is 54, while the sum is 17.

The spelling of 1021000000319 in words is "one trillion, twenty-one billion, three hundred nineteen", and thus it is an aban number.