234208471831 has 4 divisors (see below), whose sum is σ = 234210024432. Its totient is φ = 234206919232.

The previous prime is 234208471801. The next prime is 234208471853. The reversal of 234208471831 is 138174802432.

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 234208471831 - 2⁵ = 234208471799 is a prime.

It is a super-2 number, since 2×234208471831² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234208471801) 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, 522331 + ... + 860956.

It is an arithmetic number, because the mean of its divisors is an integer number (58552506108).

Almost surely, 2^234208471831 is an apocalyptic number.

234208471831 is a deficient number, since it is larger than the sum of its proper divisors (1552601).

234208471831 is a wasteful number, since it uses less digits than its factorization.

234208471831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1552600.

The product of its (nonzero) digits is 258048, while the sum is 43.

The spelling of 234208471831 in words is "two hundred thirty-four billion, two hundred eight million, four hundred seventy-one thousand, eight hundred thirty-one".