30123133013 has 2 divisors, whose sum is σ = 30123133014. Its totient is φ = 30123133012.

The previous prime is 30123133003. The next prime is 30123133021. The reversal of 30123133013 is 31033132103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20293996849 + 9829136164 = 142457^2 + 99142^2 .

It is a cyclic number.

It is not a de Polignac number, because 30123133013 - 2⁸ = 30123132757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30123133003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15061566506 + 15061566507.

It is an arithmetic number, because the mean of its divisors is an integer number (15061566507).

Almost surely, 2^30123133013 is an apocalyptic number.

It is an amenable number.

30123133013 is a deficient number, since it is larger than the sum of its proper divisors (1).

30123133013 is an equidigital number, since it uses as much as digits as its factorization.

30123133013 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 30123133013 its reverse (31033132103), we get a palindrome (61156265116).

The spelling of 30123133013 in words is "thirty billion, one hundred twenty-three million, one hundred thirty-three thousand, thirteen".