5421472123 has 2 divisors, whose sum is σ = 5421472124. Its totient is φ = 5421472122.

The previous prime is 5421472081. The next prime is 5421472129. The reversal of 5421472123 is 3212741245.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5421472123 is a prime.

It is a super-2 number, since 2×5421472123² = 58784719960932254258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5421472129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2710736061 + 2710736062.

It is an arithmetic number, because the mean of its divisors is an integer number (2710736062).

Almost surely, 2^5421472123 is an apocalyptic number.

5421472123 is a deficient number, since it is larger than the sum of its proper divisors (1).

5421472123 is an equidigital number, since it uses as much as digits as its factorization.

5421472123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 31.

The square root of 5421472123 is about 73630.6466289683. The cubic root of 5421472123 is about 1756.7329330877.

The spelling of 5421472123 in words is "five billion, four hundred twenty-one million, four hundred seventy-two thousand, one hundred twenty-three".