2123432104031 has 4 divisors (see below), whose sum is σ = 2426779547472. Its totient is φ = 1820084660592.

The previous prime is 2123432104009. The next prime is 2123432104081. The reversal of 2123432104031 is 1304012343212.

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-2123432104031 is a prime.

It is a super-2 number, since 2×2123432104031² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123432104081) 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, 151673721710 + ... + 151673721723.

It is an arithmetic number, because the mean of its divisors is an integer number (606694886868).

Almost surely, 2^{2123432104031} is an apocalyptic number.

2123432104031 is a deficient number, since it is larger than the sum of its proper divisors (303347443441).

2123432104031 is an equidigital number, since it uses as much as digits as its factorization.

2123432104031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303347443440.

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

Adding to 2123432104031 its reverse (1304012343212), we get a palindrome (3427444447243).

The spelling of 2123432104031 in words is "two trillion, one hundred twenty-three billion, four hundred thirty-two million, one hundred four thousand, thirty-one".