1023432443123 has 4 divisors (see below), whose sum is σ = 1083634351560. Its totient is φ = 963230534688.

The previous prime is 1023432443107. The next prime is 1023432443147. The reversal of 1023432443123 is 3213442343201.

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 1023432443123 - 2⁴ = 1023432443107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1023432443123.

It is not an unprimeable number, because it can be changed into a prime (1023432443723) 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, 30100954193 + ... + 30100954226.

It is an arithmetic number, because the mean of its divisors is an integer number (270908587890).

Almost surely, 2^{1023432443123} is an apocalyptic number.

1023432443123 is a deficient number, since it is larger than the sum of its proper divisors (60201908437).

1023432443123 is an equidigital number, since it uses as much as digits as its factorization.

1023432443123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60201908436.

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 1023432443123 its reverse (3213442343201), we get a palindrome (4236874786324).

The spelling of 1023432443123 in words is "one trillion, twenty-three billion, four hundred thirty-two million, four hundred forty-three thousand, one hundred twenty-three".