231110401 has 2 divisors, whose sum is σ = 231110402. Its totient is φ = 231110400.

The previous prime is 231110381. The next prime is 231110443. The reversal of 231110401 is 104011132.

231110401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 231070401 + 40000 = 15201^2 + 200^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231110401 is a prime.

It is not a weakly prime, because it can be changed into another prime (231110501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115555200 + 115555201.

It is an arithmetic number, because the mean of its divisors is an integer number (115555201).

Almost surely, 2^231110401 is an apocalyptic number.

It is an amenable number.

231110401 is a deficient number, since it is larger than the sum of its proper divisors (1).

231110401 is an equidigital number, since it uses as much as digits as its factorization.

231110401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 231110401 is about 15202.3156459797. The cubic root of 231110401 is about 613.6769769726.

Adding to 231110401 its reverse (104011132), we get a palindrome (335121533).

It can be divided in two parts, 2311 and 10401, that multiplied together give a triangular number (24036711 = T₆₉₃₃).

The spelling of 231110401 in words is "two hundred thirty-one million, one hundred ten thousand, four hundred one".