30213223451 has 2 divisors, whose sum is σ = 30213223452. Its totient is φ = 30213223450.

The previous prime is 30213223433. The next prime is 30213223457. The reversal of 30213223451 is 15432231203.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30213223451 - 2¹⁰ = 30213222427 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30213223451.

It is not a weakly prime, because it can be changed into another prime (30213223457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15106611725 + 15106611726.

It is an arithmetic number, because the mean of its divisors is an integer number (15106611726).

Almost surely, 2^30213223451 is an apocalyptic number.

30213223451 is a deficient number, since it is larger than the sum of its proper divisors (1).

30213223451 is an equidigital number, since it uses as much as digits as its factorization.

30213223451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 30213223451 its reverse (15432231203), we get a palindrome (45645454654).

The spelling of 30213223451 in words is "thirty billion, two hundred thirteen million, two hundred twenty-three thousand, four hundred fifty-one".