34431131320123 has 4 divisors (see below), whose sum is σ = 34443964394488. Its totient is φ = 34418298245760.

The previous prime is 34431131320111. The next prime is 34431131320129. The reversal of 34431131320123 is 32102313113443.

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 34431131320123 - 2¹³ = 34431131311931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34431131320129) 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, 6416533158 + ... + 6416538523.

It is an arithmetic number, because the mean of its divisors is an integer number (8610991098622).

Almost surely, 2^{34431131320123} is an apocalyptic number.

34431131320123 is a deficient number, since it is larger than the sum of its proper divisors (12833074365).

34431131320123 is a wasteful number, since it uses less digits than its factorization.

34431131320123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12833074364.

The product of its (nonzero) digits is 15552, while the sum is 31.

Adding to 34431131320123 its reverse (32102313113443), we get a palindrome (66533444433566).

The spelling of 34431131320123 in words is "thirty-four trillion, four hundred thirty-one billion, one hundred thirty-one million, three hundred twenty thousand, one hundred twenty-three".