531355412142 has 24 divisors (see below), whose sum is σ = 1172992138344. Its totient is φ = 173776612464.

The previous prime is 531355412069. The next prime is 531355412153. The reversal of 531355412142 is 241214553135.

531355412142 is a `hidden beast` number, since 53 + 1 + 3 + 5 + 541 + 21 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 531355412097 and 531355412106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 278487208 + ... + 278489115.

It is an arithmetic number, because the mean of its divisors is an integer number (48874672431).

Almost surely, 2^531355412142 is an apocalyptic number.

531355412142 is an abundant number, since it is smaller than the sum of its proper divisors (641636726202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

531355412142 is a wasteful number, since it uses less digits than its factorization.

531355412142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556976384 (or 556976381 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

Adding to 531355412142 its reverse (241214553135), we get a palindrome (772569965277).

The spelling of 531355412142 in words is "five hundred thirty-one billion, three hundred fifty-five million, four hundred twelve thousand, one hundred forty-two".