31240421233124 has 12 divisors (see below), whose sum is σ = 54671225773500. Its totient is φ = 15620071012128.

The previous prime is 31240421233121. The next prime is 31240421233141. The reversal of 31240421233124 is 42133212404213.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6564961079524 + 24675460153600 = 2562218^2 + 4967440^2 .

It is not an unprimeable number, because it can be changed into a prime (31240421233121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34396799 + ... + 35293350.

It is an arithmetic number, because the mean of its divisors is an integer number (4555935481125).

Almost surely, 2^{31240421233124} is an apocalyptic number.

It is an amenable number.

31240421233124 is a deficient number, since it is larger than the sum of its proper divisors (23430804540376).

31240421233124 is a wasteful number, since it uses less digits than its factorization.

31240421233124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69802222 (or 69802220 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 31240421233124 its reverse (42133212404213), we get a palindrome (73373633637337).

The spelling of 31240421233124 in words is "thirty-one trillion, two hundred forty billion, four hundred twenty-one million, two hundred thirty-three thousand, one hundred twenty-four".