231606145003 has 4 divisors (see below), whose sum is σ = 231608099008. Its totient is φ = 231604191000.

The previous prime is 231606144877. The next prime is 231606145027. The reversal of 231606145003 is 300541606132.

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 231606145003 - 2⁹ = 231606144491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231606145073) 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, 786876 + ... + 1040377.

It is an arithmetic number, because the mean of its divisors is an integer number (57902024752).

Almost surely, 2^231606145003 is an apocalyptic number.

231606145003 is a deficient number, since it is larger than the sum of its proper divisors (1954005).

231606145003 is a wasteful number, since it uses less digits than its factorization.

231606145003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1954004.

The product of its (nonzero) digits is 12960, while the sum is 31.

The spelling of 231606145003 in words is "two hundred thirty-one billion, six hundred six million, one hundred forty-five thousand, three".