30213423 has 12 divisors (see below), whose sum is σ = 44821608. Its totient is φ = 19597680.

The previous prime is 30213419. The next prime is 30213431. The reversal of 30213423 is 32431203.

30213423 is a `hidden beast` number, since 30 + 213 + 423 = 666.

It is not a de Polignac number, because 30213423 - 2² = 30213419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30213396 and 30213405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30213413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45033 + ... + 45698.

It is an arithmetic number, because the mean of its divisors is an integer number (3735134).

Almost surely, 2^30213423 is an apocalyptic number.

30213423 is a deficient number, since it is larger than the sum of its proper divisors (14608185).

30213423 is a wasteful number, since it uses less digits than its factorization.

30213423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90774 (or 90771 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 30213423 is about 5496.6738124069. The cubic root of 30213423 is about 311.4583489128.

Adding to 30213423 its reverse (32431203), we get a palindrome (62644626).

The spelling of 30213423 in words is "thirty million, two hundred thirteen thousand, four hundred twenty-three".