531403023345 has 32 divisors (see below), whose sum is σ = 859708346112. Its totient is φ = 280276180992.

The previous prime is 531403023331. The next prime is 531403023379. The reversal of 531403023345 is 543320304135.

It is not a de Polignac number, because 531403023345 - 2⁹ = 531403022833 is a prime.

It is a super-2 number, since 2×531403023345² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48849 + ... + 1032081.

It is an arithmetic number, because the mean of its divisors is an integer number (26865885816).

Almost surely, 2^531403023345 is an apocalyptic number.

It is an amenable number.

531403023345 is a deficient number, since it is larger than the sum of its proper divisors (328305322767).

531403023345 is a wasteful number, since it uses less digits than its factorization.

531403023345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983641.

The product of its (nonzero) digits is 64800, while the sum is 33.

The spelling of 531403023345 in words is "five hundred thirty-one billion, four hundred three million, twenty-three thousand, three hundred forty-five".