531354204121 has 32 divisors (see below), whose sum is σ = 587728227968. Its totient is φ = 477386680320.

The previous prime is 531354204019. The next prime is 531354204131. The reversal of 531354204121 is 121402453135.

It is a cyclic number.

It is not a de Polignac number, because 531354204121 - 2¹³ = 531354195929 is a prime.

It is a super-2 number, since 2×531354204121² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (531354204131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54320251 + ... + 54330031.

It is an arithmetic number, because the mean of its divisors is an integer number (18366507124).

Almost surely, 2^531354204121 is an apocalyptic number.

It is an amenable number.

531354204121 is a deficient number, since it is larger than the sum of its proper divisors (56374023847).

531354204121 is a wasteful number, since it uses less digits than its factorization.

531354204121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10601.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 531354204121 its reverse (121402453135), we get a palindrome (652756657256).

The spelling of 531354204121 in words is "five hundred thirty-one billion, three hundred fifty-four million, two hundred four thousand, one hundred twenty-one".