1421523043 has 2 divisors, whose sum is σ = 1421523044. Its totient is φ = 1421523042.

The previous prime is 1421522933. The next prime is 1421523067. The reversal of 1421523043 is 3403251241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1421523043 - 2¹⁷ = 1421391971 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1421522999 and 1421523017.

It is not a weakly prime, because it can be changed into another prime (1421523083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710761521 + 710761522.

It is an arithmetic number, because the mean of its divisors is an integer number (710761522).

Almost surely, 2^1421523043 is an apocalyptic number.

1421523043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421523043 is an equidigital number, since it uses as much as digits as its factorization.

1421523043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 1421523043 is about 37703.0906292840. The cubic root of 1421523043 is about 1124.3925723011.

Adding to 1421523043 its reverse (3403251241), we get a palindrome (4824774284).

The spelling of 1421523043 in words is "one billion, four hundred twenty-one million, five hundred twenty-three thousand, forty-three".