31353450524340 has 192 divisors, whose sum is σ = 100785237202944. Its totient is φ = 7134068132352.

The previous prime is 31353450524303. The next prime is 31353450524371. The reversal of 31353450524340 is 4342505435313.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 31353450524292 and 31353450524301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1113271099 + ... + 1113299261.

It is an arithmetic number, because the mean of its divisors is an integer number (524923110432).

Almost surely, 2^{31353450524340} is an apocalyptic number.

31353450524340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31353450524340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50392618601472).

31353450524340 is an abundant number, since it is smaller than the sum of its proper divisors (69431786678604).

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

31353450524340 is a wasteful number, since it uses less digits than its factorization.

31353450524340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40086 (or 40084 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 42.

Adding to 31353450524340 its reverse (4342505435313), we get a palindrome (35695955959653).

The spelling of 31353450524340 in words is "thirty-one trillion, three hundred fifty-three billion, four hundred fifty million, five hundred twenty-four thousand, three hundred forty".