231675742421 has 8 divisors (see below), whose sum is σ = 231873893784. Its totient is φ = 231477644800.

The previous prime is 231675742373. The next prime is 231675742427. The reversal of 231675742421 is 124247576132.

It can be written as a sum of positive squares in 4 ways, for example, as 73837192900 + 157838549521 = 271730^2 + 397289^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231675742421 - 2⁶ = 231675742357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231675742427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17764115 + ... + 17777151.

It is an arithmetic number, because the mean of its divisors is an integer number (28984236723).

Almost surely, 2^231675742421 is an apocalyptic number.

It is an amenable number.

231675742421 is a deficient number, since it is larger than the sum of its proper divisors (198151363).

231675742421 is a wasteful number, since it uses less digits than its factorization.

231675742421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26871.

The product of its digits is 564480, while the sum is 44.

The spelling of 231675742421 in words is "two hundred thirty-one billion, six hundred seventy-five million, seven hundred forty-two thousand, four hundred twenty-one".