30310000393 has 4 divisors (see below), whose sum is σ = 30311030800. Its totient is φ = 30308969988.

The previous prime is 30310000381. The next prime is 30310000403. The reversal of 30310000393 is 39300001303.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30310000393 - 2¹³ = 30309992201 is a prime.

It is a super-2 number, since 2×30310000393² (a number of 22 digits) contains 22 as substring.

It is a deceptive number, since it divides R_30310000392.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30310003393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 469743 + ... + 530356.

It is an arithmetic number, because the mean of its divisors is an integer number (7577757700).

Almost surely, 2^30310000393 is an apocalyptic number.

It is an amenable number.

30310000393 is a deficient number, since it is larger than the sum of its proper divisors (1030407).

30310000393 is a wasteful number, since it uses less digits than its factorization.

30310000393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030406.

The product of its (nonzero) digits is 729, while the sum is 22.

Adding to 30310000393 its reverse (39300001303), we get a palindrome (69610001696).

The spelling of 30310000393 in words is "thirty billion, three hundred ten million, three hundred ninety-three", and thus it is an aban number.