1123423143002 has 4 divisors (see below), whose sum is σ = 1685134714506. Its totient is φ = 561711571500.

The previous prime is 1123423142987. The next prime is 1123423143019. The reversal of 1123423143002 is 2003413243211.

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

It can be written as a sum of positive squares in only one way, i.e., 1050053127841 + 73370015161 = 1024721^2 + 270869^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280855785749 + ... + 280855785752.

Almost surely, 2^{1123423143002} is an apocalyptic number.

1123423143002 is a deficient number, since it is larger than the sum of its proper divisors (561711571504).

1123423143002 is an equidigital number, since it uses as much as digits as its factorization.

1123423143002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561711571503.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 1123423143002 its reverse (2003413243211), we get a palindrome (3126836386213).

The spelling of 1123423143002 in words is "one trillion, one hundred twenty-three billion, four hundred twenty-three million, one hundred forty-three thousand, two".