231243412420401 has 4 divisors (see below), whose sum is σ = 308324549893872. Its totient is φ = 154162274946932.

The previous prime is 231243412420399. The next prime is 231243412420403. The reversal of 231243412420401 is 104024214342132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (231243412420399) and next prime (231243412420403).

It is a cyclic number.

It is not a de Polignac number, because 231243412420401 - 2¹ = 231243412420399 is a prime.

It is a super-2 number, since 2×231243412420401² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231243412420403) 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, 38540568736731 + ... + 38540568736736.

It is an arithmetic number, because the mean of its divisors is an integer number (77081137473468).

Almost surely, 2^{231243412420401} is an apocalyptic number.

It is an amenable number.

231243412420401 is a deficient number, since it is larger than the sum of its proper divisors (77081137473471).

231243412420401 is an equidigital number, since it uses as much as digits as its factorization.

231243412420401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77081137473470.

The product of its (nonzero) digits is 36864, while the sum is 33.

Adding to 231243412420401 its reverse (104024214342132), we get a palindrome (335267626762533).

The spelling of 231243412420401 in words is "two hundred thirty-one trillion, two hundred forty-three billion, four hundred twelve million, four hundred twenty thousand, four hundred one".