30031123313 has 2 divisors, whose sum is σ = 30031123314. Its totient is φ = 30031123312.

The previous prime is 30031123301. The next prime is 30031123327. The reversal of 30031123313 is 31332113003.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29895447409 + 135675904 = 172903^2 + 11648^2 .

It is a cyclic number.

It is not a de Polignac number, because 30031123313 - 2¹⁴ = 30031106929 is a prime.

It is a super-2 number, since 2×30031123313² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30031123013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15015561656 + 15015561657.

It is an arithmetic number, because the mean of its divisors is an integer number (15015561657).

Almost surely, 2^30031123313 is an apocalyptic number.

It is an amenable number.

30031123313 is a deficient number, since it is larger than the sum of its proper divisors (1).

30031123313 is an equidigital number, since it uses as much as digits as its factorization.

30031123313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 30031123313 its reverse (31332113003), we get a palindrome (61363236316).

The spelling of 30031123313 in words is "thirty billion, thirty-one million, one hundred twenty-three thousand, three hundred thirteen".