30555001123 has 2 divisors, whose sum is σ = 30555001124. Its totient is φ = 30555001122.

The previous prime is 30555001079. The next prime is 30555001133. The reversal of 30555001123 is 32110055503.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30555001123 - 2²¹ = 30552903971 is a prime.

It is a super-2 number, since 2×30555001123² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30555001133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15277500561 + 15277500562.

It is an arithmetic number, because the mean of its divisors is an integer number (15277500562).

Almost surely, 2^30555001123 is an apocalyptic number.

30555001123 is a deficient number, since it is larger than the sum of its proper divisors (1).

30555001123 is an equidigital number, since it uses as much as digits as its factorization.

30555001123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2250, while the sum is 25.

Adding to 30555001123 its reverse (32110055503), we get a palindrome (62665056626).

The spelling of 30555001123 in words is "thirty billion, five hundred fifty-five million, one thousand, one hundred twenty-three".