30451223029 has 2 divisors, whose sum is σ = 30451223030. Its totient is φ = 30451223028.

The previous prime is 30451223003. The next prime is 30451223041. The reversal of 30451223029 is 92032215403.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27681306129 + 2769916900 = 166377^2 + 52630^2 .

It is an emirp because it is prime and its reverse (92032215403) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30451223029 - 2²⁵ = 30417668597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30451223059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15225611514 + 15225611515.

It is an arithmetic number, because the mean of its divisors is an integer number (15225611515).

Almost surely, 2^30451223029 is an apocalyptic number.

It is an amenable number.

30451223029 is a deficient number, since it is larger than the sum of its proper divisors (1).

30451223029 is an equidigital number, since it uses as much as digits as its factorization.

30451223029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 31.

The spelling of 30451223029 in words is "thirty billion, four hundred fifty-one million, two hundred twenty-three thousand, twenty-nine".