1023723135 has 24 divisors (see below), whose sum is σ = 1867847280. Its totient is φ = 517249152.

The previous prime is 1023723109. The next prime is 1023723139. The reversal of 1023723135 is 5313273201.

It is not a de Polignac number, because 1023723135 - 2⁸ = 1023722879 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1023723099 and 1023723108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023723139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 597814 + ... + 599523.

It is an arithmetic number, because the mean of its divisors is an integer number (77826970).

Almost surely, 2^1023723135 is an apocalyptic number.

1023723135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1023723135 is a deficient number, since it is larger than the sum of its proper divisors (844124145).

1023723135 is a wasteful number, since it uses less digits than its factorization.

1023723135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1197367 (or 1197364 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 1023723135 is about 31995.6736919228. The cubic root of 1023723135 is about 1007.8459910918.

Adding to 1023723135 its reverse (5313273201), we get a palindrome (6336996336).

The spelling of 1023723135 in words is "one billion, twenty-three million, seven hundred twenty-three thousand, one hundred thirty-five".