231400422401 has 4 divisors (see below), whose sum is σ = 245012211972. Its totient is φ = 217788632832.

The previous prime is 231400422397. The next prime is 231400422431. The reversal of 231400422401 is 104224004132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 194093113600 + 37307308801 = 440560^2 + 193151^2 .

It is a cyclic number.

It is not a de Polignac number, because 231400422401 - 2² = 231400422397 is a prime.

It is a super-2 number, since 2×231400422401² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231400422431) 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, 6805894760 + ... + 6805894793.

It is an arithmetic number, because the mean of its divisors is an integer number (61253052993).

Almost surely, 2^231400422401 is an apocalyptic number.

It is an amenable number.

231400422401 is a deficient number, since it is larger than the sum of its proper divisors (13611789571).

231400422401 is a wasteful number, since it uses less digits than its factorization.

231400422401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13611789570.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 231400422401 its reverse (104224004132), we get a palindrome (335624426533).

The spelling of 231400422401 in words is "two hundred thirty-one billion, four hundred million, four hundred twenty-two thousand, four hundred one".