231351401 has 2 divisors, whose sum is σ = 231351402. Its totient is φ = 231351400.

The previous prime is 231351359. The next prime is 231351409. The reversal of 231351401 is 104153132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 204061225 + 27290176 = 14285^2 + 5224^2 .

It is a cyclic number.

It is not a de Polignac number, because 231351401 - 2¹⁰ = 231350377 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (231351409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115675700 + 115675701.

It is an arithmetic number, because the mean of its divisors is an integer number (115675701).

Almost surely, 2^231351401 is an apocalyptic number.

It is an amenable number.

231351401 is a deficient number, since it is larger than the sum of its proper divisors (1).

231351401 is an equidigital number, since it uses as much as digits as its factorization.

231351401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 231351401 is about 15210.2400046811. The cubic root of 231351401 is about 613.8902152810.

The spelling of 231351401 in words is "two hundred thirty-one million, three hundred fifty-one thousand, four hundred one".