123001004010043 has 4 divisors (see below), whose sum is σ = 123001087483728. Its totient is φ = 123000920536360.

The previous prime is 123001004010011. The next prime is 123001004010061. The reversal of 123001004010043 is 340010400100321.

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 123001004010043 - 2⁵ = 123001004010011 is a prime.

It is a super-2 number, since 2×123001004010043² (a number of 29 digits) contains 22 as substring.

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 123001004010043.

It is not an unprimeable number, because it can be changed into a prime (123001004010083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39486088 + ... + 42487093.

It is an arithmetic number, because the mean of its divisors is an integer number (30750271870932).

Almost surely, 2^{123001004010043} is an apocalyptic number.

123001004010043 is a deficient number, since it is larger than the sum of its proper divisors (83473685).

123001004010043 is an equidigital number, since it uses as much as digits as its factorization.

123001004010043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83473684.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 123001004010043 its reverse (340010400100321), we get a palindrome (463011404110364).

The spelling of 123001004010043 in words is "one hundred twenty-three trillion, one billion, four million, ten thousand, forty-three".