531314422140 has 96 divisors (see below), whose sum is σ = 1506928582656. Its totient is φ = 139853689600.

The previous prime is 531314422087. The next prime is 531314422141. The reversal of 531314422140 is 41224413135.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 531314422098 and 531314422107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531314422141) 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, 5685634 + ... + 5778326.

It is an arithmetic number, because the mean of its divisors is an integer number (15697172736).

Almost surely, 2^531314422140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 531314422140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (753464291328).

531314422140 is an abundant number, since it is smaller than the sum of its proper divisors (975614160516).

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

531314422140 is a wasteful number, since it uses less digits than its factorization.

531314422140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93939 (or 93937 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 531314422140 its reverse (41224413135), we get a palindrome (572538835275).

The spelling of 531314422140 in words is "five hundred thirty-one billion, three hundred fourteen million, four hundred twenty-two thousand, one hundred forty".