31325424144534 has 320 divisors, whose sum is σ = 80788977472896. Its totient is φ = 8986788642816.

The previous prime is 31325424144463. The next prime is 31325424144577. The reversal of 31325424144534 is 43544142452313.

It is a happy number.

31325424144534 is a `hidden beast` number, since 3 + 1 + 3 + 2 + 54 + 24 + 1 + 44 + 534 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 31325424144534.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 2467145274 + ... + 2467157970.

Almost surely, 2^{31325424144534} is an apocalyptic number.

31325424144534 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 31325424144534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40394488736448).

31325424144534 is an abundant number, since it is smaller than the sum of its proper divisors (49463553328362).

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

31325424144534 is a wasteful number, since it uses less digits than its factorization.

31325424144534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13381 (or 13372 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 45.

Adding to 31325424144534 its reverse (43544142452313), we get a palindrome (74869566596847).

The spelling of 31325424144534 in words is "thirty-one trillion, three hundred twenty-five billion, four hundred twenty-four million, one hundred forty-four thousand, five hundred thirty-four".