30401123 has 2 divisors, whose sum is σ = 30401124. Its totient is φ = 30401122.

The previous prime is 30401113. The next prime is 30401149. The reversal of 30401123 is 32110403.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30401123 - 2¹⁰ = 30400099 is a prime.

It is a super-2 number, since 2×30401123² = 1848456559322258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30401098 and 30401107.

It is not a weakly prime, because it can be changed into another prime (30401113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15200561 + 15200562.

It is an arithmetic number, because the mean of its divisors is an integer number (15200562).

Almost surely, 2^30401123 is an apocalyptic number.

30401123 is a deficient number, since it is larger than the sum of its proper divisors (1).

30401123 is an equidigital number, since it uses as much as digits as its factorization.

30401123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 30401123 is about 5513.7213386242. The cubic root of 30401123 is about 312.1019931449.

Adding to 30401123 its reverse (32110403), we get a palindrome (62511526).

The spelling of 30401123 in words is "thirty million, four hundred one thousand, one hundred twenty-three".