30120003131249 has 2 divisors, whose sum is σ = 30120003131250. Its totient is φ = 30120003131248.

The previous prime is 30120003131219. The next prime is 30120003131261. The reversal of 30120003131249 is 94213130002103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26523169504225 + 3596833627024 = 5150065^2 + 1896532^2 .

It is a cyclic number.

It is not a de Polignac number, because 30120003131249 - 2¹² = 30120003127153 is a prime.

It is not a weakly prime, because it can be changed into another prime (30120003131219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15060001565624 + 15060001565625.

It is an arithmetic number, because the mean of its divisors is an integer number (15060001565625).

Almost surely, 2^{30120003131249} is an apocalyptic number.

It is an amenable number.

30120003131249 is a deficient number, since it is larger than the sum of its proper divisors (1).

30120003131249 is an equidigital number, since it uses as much as digits as its factorization.

30120003131249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 29.

The spelling of 30120003131249 in words is "thirty trillion, one hundred twenty billion, three million, one hundred thirty-one thousand, two hundred forty-nine".