30302312231 has 4 divisors (see below), whose sum is σ = 30303425592. Its totient is φ = 30301198872.

The previous prime is 30302312143. The next prime is 30302312263. The reversal of 30302312231 is 13221320303.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13221320303 = 457 ⋅28930679.

It is a cyclic number.

It is not a de Polignac number, because 30302312231 - 2¹⁸ = 30302050087 is a prime.

It is a super-2 number, since 2×30302312231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30302312731) 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, 514805 + ... + 570638.

It is an arithmetic number, because the mean of its divisors is an integer number (7575856398).

Almost surely, 2^30302312231 is an apocalyptic number.

30302312231 is a deficient number, since it is larger than the sum of its proper divisors (1113361).

30302312231 is a wasteful number, since it uses less digits than its factorization.

30302312231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113360.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 30302312231 its reverse (13221320303), we get a palindrome (43523632534).

The spelling of 30302312231 in words is "thirty billion, three hundred two million, three hundred twelve thousand, two hundred thirty-one".