1563122023 has 2 divisors, whose sum is σ = 1563122024. Its totient is φ = 1563122022.

The previous prime is 1563121979. The next prime is 1563122047. The reversal of 1563122023 is 3202213651.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1563122023 - 2¹⁷ = 1562990951 is a prime.

It is a super-2 number, since 2×1563122023² = 4886700917575225058, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1563122053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 781561011 + 781561012.

It is an arithmetic number, because the mean of its divisors is an integer number (781561012).

Almost surely, 2^1563122023 is an apocalyptic number.

1563122023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1563122023 is an equidigital number, since it uses as much as digits as its factorization.

1563122023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1563122023 is about 39536.3380069525. The cubic root of 1563122023 is about 1160.5511706417.

Adding to 1563122023 its reverse (3202213651), we get a palindrome (4765335674).

The spelling of 1563122023 in words is "one billion, five hundred sixty-three million, one hundred twenty-two thousand, twenty-three".