30213043031 has 4 divisors (see below), whose sum is σ = 30213475992. Its totient is φ = 30212610072.

The previous prime is 30213043019. The next prime is 30213043033. The reversal of 30213043031 is 13034031203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13034031203 = 18049 ⋅722147.

It is a cyclic number.

It is not a de Polignac number, because 30213043031 - 2³⁰ = 29139301207 is a prime.

It is a super-2 number, since 2×30213043031² (a number of 22 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 = 30213042994 and 30213043012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30213043033) 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, 85316 + ... + 260201.

It is an arithmetic number, because the mean of its divisors is an integer number (7553368998).

Almost surely, 2^30213043031 is an apocalyptic number.

30213043031 is a deficient number, since it is larger than the sum of its proper divisors (432961).

30213043031 is an equidigital number, since it uses as much as digits as its factorization.

30213043031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432960.

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

Adding to 30213043031 its reverse (13034031203), we get a palindrome (43247074234).

The spelling of 30213043031 in words is "thirty billion, two hundred thirteen million, forty-three thousand, thirty-one".