1023161523 has 4 divisors (see below), whose sum is σ = 1364215368. Its totient is φ = 682107680.

The previous prime is 1023161497. The next prime is 1023161543. The reversal of 1023161523 is 3251613201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1023161523 - 2⁶ = 1023161459 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1023161493 and 1023161502.

It is not an unprimeable number, because it can be changed into a prime (1023161543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170526918 + ... + 170526923.

It is an arithmetic number, because the mean of its divisors is an integer number (341053842).

Almost surely, 2^1023161523 is an apocalyptic number.

1023161523 is a deficient number, since it is larger than the sum of its proper divisors (341053845).

1023161523 is an equidigital number, since it uses as much as digits as its factorization.

1023161523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341053844.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 1023161523 is about 31986.8961138776. The cubic root of 1023161523 is about 1007.6616567667.

Adding to 1023161523 its reverse (3251613201), we get a palindrome (4274774724).

The spelling of 1023161523 in words is "one billion, twenty-three million, one hundred sixty-one thousand, five hundred twenty-three".