31240242234231 has 8 divisors (see below), whose sum is σ = 41653688200560. Its totient is φ = 20826812212032.

The previous prime is 31240242234211. The next prime is 31240242234233. The reversal of 31240242234231 is 13243224204213.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31240242234231 - 2¹⁵ = 31240242201463 is a prime.

It is a super-2 number, since 2×31240242234231² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31240242234192 and 31240242234201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31240242234233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1775505 + ... + 8101413.

It is an arithmetic number, because the mean of its divisors is an integer number (5206711025070).

Almost surely, 2^{31240242234231} is an apocalyptic number.

31240242234231 is a deficient number, since it is larger than the sum of its proper divisors (10413445966329).

31240242234231 is a wasteful number, since it uses less digits than its factorization.

31240242234231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7972065.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 31240242234231 its reverse (13243224204213), we get a palindrome (44483466438444).

The spelling of 31240242234231 in words is "thirty-one trillion, two hundred forty billion, two hundred forty-two million, two hundred thirty-four thousand, two hundred thirty-one".