1000135023 has 8 divisors (see below), whose sum is σ = 1350393600. Its totient is φ = 658316568.

The previous prime is 1000135001. The next prime is 1000135079. The reversal of 1000135023 is 3205310001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1000135023 - 2⁶ = 1000134959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1000134993 and 1000135011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000135723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2109753 + ... + 2110226.

It is an arithmetic number, because the mean of its divisors is an integer number (168799200).

Almost surely, 2^1000135023 is an apocalyptic number.

1000135023 is a deficient number, since it is larger than the sum of its proper divisors (350258577).

1000135023 is an equidigital number, since it uses as much as digits as its factorization.

1000135023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4220061.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 1000135023 is about 31624.9114307060. The cubic root of 1000135023 is about 1000.0450056411.

Adding to 1000135023 its reverse (3205310001), we get a palindrome (4205445024).

The spelling of 1000135023 in words is "one billion, one hundred thirty-five thousand, twenty-three".