531414031021 has 16 divisors (see below), whose sum is σ = 541934717184. Its totient is φ = 520994139904.

The previous prime is 531414031019. The next prime is 531414031061. The reversal of 531414031021 is 120130414135.

It is a cyclic number.

It is not a de Polignac number, because 531414031021 - 2¹ = 531414031019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531414031061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40849500 + ... + 40862506.

It is an arithmetic number, because the mean of its divisors is an integer number (33870919824).

Almost surely, 2^531414031021 is an apocalyptic number.

It is an amenable number.

531414031021 is a deficient number, since it is larger than the sum of its proper divisors (10520686163).

531414031021 is a wasteful number, since it uses less digits than its factorization.

531414031021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16820.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 531414031021 its reverse (120130414135), we get a palindrome (651544445156).

The spelling of 531414031021 in words is "five hundred thirty-one billion, four hundred fourteen million, thirty-one thousand, twenty-one".