31232430243 has 96 divisors (see below), whose sum is σ = 55160082432. Its totient is φ = 16623360000.

The previous prime is 31232430239. The next prime is 31232430247. The reversal of 31232430243 is 34203423213.

31232430243 is a `hidden beast` number, since 31 + 2 + 324 + 302 + 4 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (31232430239) and next prime (31232430247).

It is not a de Polignac number, because 31232430243 - 2² = 31232430239 is a prime.

It is a super-2 number, since 2×31232430243² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31232430247) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 59946823 + ... + 59947343.

It is an arithmetic number, because the mean of its divisors is an integer number (574584192).

Almost surely, 2^31232430243 is an apocalyptic number.

31232430243 is a deficient number, since it is larger than the sum of its proper divisors (23927652189).

31232430243 is a wasteful number, since it uses less digits than its factorization.

31232430243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025 (or 1022 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 31232430243 its reverse (34203423213), we get a palindrome (65435853456).

The spelling of 31232430243 in words is "thirty-one billion, two hundred thirty-two million, four hundred thirty thousand, two hundred forty-three".