531425424232121 has 8 divisors (see below), whose sum is σ = 548580238546944. Its totient is φ = 514271363585760.

The previous prime is 531425424232081. The next prime is 531425424232159. The reversal of 531425424232121 is 121232424524135.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 531425424232121 - 2³⁴ = 531408244362937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (531425424232321) 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, 186983945 + ... + 189804758.

It is an arithmetic number, because the mean of its divisors is an integer number (68572529818368).

Almost surely, 2^{531425424232121} is an apocalyptic number.

It is an amenable number.

531425424232121 is a deficient number, since it is larger than the sum of its proper divisors (17154814314823).

531425424232121 is a wasteful number, since it uses less digits than its factorization.

531425424232121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376834231.

The product of its digits is 460800, while the sum is 41.

Adding to 531425424232121 its reverse (121232424524135), we get a palindrome (652657848756256).

The spelling of 531425424232121 in words is "five hundred thirty-one trillion, four hundred twenty-five billion, four hundred twenty-four million, two hundred thirty-two thousand, one hundred twenty-one".