31234233130 has 16 divisors (see below), whose sum is σ = 56382719400. Its totient is φ = 12457893312.

The previous prime is 31234233113. The next prime is 31234233137. The reversal of 31234233130 is 3133243213.

It can be written as a sum of positive squares in 4 ways, for example, as 22475706561 + 8758526569 = 149919^2 + 93587^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31234233095 and 31234233104.

It is not an unprimeable number, because it can be changed into a prime (31234233137) 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 7 ways as a sum of consecutive naturals, for example, 4471329 + ... + 4478308.

Almost surely, 2^31234233130 is an apocalyptic number.

31234233130 is a deficient number, since it is larger than the sum of its proper divisors (25148486270).

31234233130 is a wasteful number, since it uses less digits than its factorization.

31234233130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8949993.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 31234233130 its reverse (3133243213), we get a palindrome (34367476343).

The spelling of 31234233130 in words is "thirty-one billion, two hundred thirty-four million, two hundred thirty-three thousand, one hundred thirty".