123202434100043 has 4 divisors (see below), whose sum is σ = 123210007881240. Its totient is φ = 123194860318848.

The previous prime is 123202434100019. The next prime is 123202434100051. The reversal of 123202434100043 is 340001434202321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123202434100043 is a prime.

It is a super-3 number, since 3×123202434100043³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123202434099979 and 123202434100015.

It is not an unprimeable number, because it can be changed into a prime (123202434100063) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3786866198 + ... + 3786898731.

It is an arithmetic number, because the mean of its divisors is an integer number (30802501970310).

Almost surely, 2^{123202434100043} is an apocalyptic number.

123202434100043 is a deficient number, since it is larger than the sum of its proper divisors (7573781197).

123202434100043 is an equidigital number, since it uses as much as digits as its factorization.

123202434100043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7573781196.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 123202434100043 its reverse (340001434202321), we get a palindrome (463203868302364).

The spelling of 123202434100043 in words is "one hundred twenty-three trillion, two hundred two billion, four hundred thirty-four million, one hundred thousand, forty-three".