523240320123231 has 16 divisors (see below), whose sum is σ = 697698613188864. Its totient is φ = 348804454356864.

The previous prime is 523240320123187. The next prime is 523240320123253. The reversal of 523240320123231 is 132321023042325.

It is not a de Polignac number, because 523240320123231 - 2⁴² = 518842273612127 is a prime.

It is a super-2 number, since 2×523240320123231² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 523240320123192 and 523240320123201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523240320128231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4862638876 + ... + 4862746478.

It is an arithmetic number, because the mean of its divisors is an integer number (43606163324304).

Almost surely, 2^{523240320123231} is an apocalyptic number.

523240320123231 is a deficient number, since it is larger than the sum of its proper divisors (174458293065633).

523240320123231 is a wasteful number, since it uses less digits than its factorization.

523240320123231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196750.

The product of its (nonzero) digits is 51840, while the sum is 33.

Adding to 523240320123231 its reverse (132321023042325), we get a palindrome (655561343165556).

The spelling of 523240320123231 in words is "five hundred twenty-three trillion, two hundred forty billion, three hundred twenty million, one hundred twenty-three thousand, two hundred thirty-one".