1023243534155 has 8 divisors (see below), whose sum is σ = 1234125197712. Its totient is φ = 814439522848.

The previous prime is 1023243534083. The next prime is 1023243534167. The reversal of 1023243534155 is 5514353423201.

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

It is a cyclic number.

It is not a de Polignac number, because 1023243534155 - 2²⁰ = 1023242485579 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 519411977 + ... + 519413946.

It is an arithmetic number, because the mean of its divisors is an integer number (154265649714).

Almost surely, 2^{1023243534155} is an apocalyptic number.

1023243534155 is a deficient number, since it is larger than the sum of its proper divisors (210881663557).

1023243534155 is a wasteful number, since it uses less digits than its factorization.

1023243534155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038826125.

The product of its (nonzero) digits is 216000, while the sum is 38.

Adding to 1023243534155 its reverse (5514353423201), we get a palindrome (6537596957356).

The spelling of 1023243534155 in words is "one trillion, twenty-three billion, two hundred forty-three million, five hundred thirty-four thousand, one hundred fifty-five".