1023521423 has 2 divisors, whose sum is σ = 1023521424. Its totient is φ = 1023521422.

The previous prime is 1023521377. The next prime is 1023521437. The reversal of 1023521423 is 3241253201.

1023521423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1023521423 - 2⁸ = 1023521167 is a prime.

It is a super-2 number, since 2×1023521423² = 2095192206679889858, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1023526423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511760711 + 511760712.

It is an arithmetic number, because the mean of its divisors is an integer number (511760712).

Almost surely, 2^1023521423 is an apocalyptic number.

1023521423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023521423 is an equidigital number, since it uses as much as digits as its factorization.

1023521423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1023521423 is about 31992.5213604680. The cubic root of 1023521423 is about 1007.7797922088.

Adding to 1023521423 its reverse (3241253201), we get a palindrome (4264774624).

The spelling of 1023521423 in words is "one billion, twenty-three million, five hundred twenty-one thousand, four hundred twenty-three".