231123245220064 has 48 divisors (see below), whose sum is σ = 457578269694000. Its totient is φ = 114914700601344.

The previous prime is 231123245220053. The next prime is 231123245220071. The reversal of 231123245220064 is 460022542321132.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24187339 + ... + 32361610.

It is an arithmetic number, because the mean of its divisors is an integer number (9532880618625).

Almost surely, 2^{231123245220064} is an apocalyptic number.

It is an amenable number.

231123245220064 is a deficient number, since it is larger than the sum of its proper divisors (226455024473936).

231123245220064 is a wasteful number, since it uses less digits than its factorization.

231123245220064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56549675 (or 56549667 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 37.

Adding to 231123245220064 its reverse (460022542321132), we get a palindrome (691145787541196).

The spelling of 231123245220064 in words is "two hundred thirty-one trillion, one hundred twenty-three billion, two hundred forty-five million, two hundred twenty thousand, sixty-four".