231431422401 has 32 divisors (see below), whose sum is σ = 363205596800. Its totient is φ = 145236162240.

The previous prime is 231431422381. The next prime is 231431422423. The reversal of 231431422401 is 104224134132.

231431422401 is a `hidden beast` number, since 2 + 3 + 1 + 431 + 4 + 224 + 0 + 1 = 666.

It is not a de Polignac number, because 231431422401 - 2³⁰ = 230357680577 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231431421401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1356190 + ... + 1517271.

It is an arithmetic number, because the mean of its divisors is an integer number (11350174900).

Almost surely, 2^231431422401 is an apocalyptic number.

It is an amenable number.

231431422401 is a deficient number, since it is larger than the sum of its proper divisors (131774174399).

231431422401 is a wasteful number, since it uses less digits than its factorization.

231431422401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2873646 (or 2873640 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 231431422401 its reverse (104224134132), we get a palindrome (335655556533).

The spelling of 231431422401 in words is "two hundred thirty-one billion, four hundred thirty-one million, four hundred twenty-two thousand, four hundred one".