1623543231011 has 8 divisors (see below), whose sum is σ = 1748682228384. Its totient is φ = 1498440098880.

The previous prime is 1623543231001. The next prime is 1623543231127. The reversal of 1623543231011 is 1101323453261.

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 1623543231011 - 2¹⁴ = 1623543214627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1623543231001) 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, 8872250 + ... + 9053391.

It is an arithmetic number, because the mean of its divisors is an integer number (218585278548).

Almost surely, 2^{1623543231011} is an apocalyptic number.

1623543231011 is a deficient number, since it is larger than the sum of its proper divisors (125138997373).

1623543231011 is a wasteful number, since it uses less digits than its factorization.

1623543231011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17932621.

The product of its (nonzero) digits is 12960, while the sum is 32.

Adding to 1623543231011 its reverse (1101323453261), we get a palindrome (2724866684272).

The spelling of 1623543231011 in words is "one trillion, six hundred twenty-three billion, five hundred forty-three million, two hundred thirty-one thousand, eleven".