30321131500452 has 48 divisors (see below), whose sum is σ = 76191918566400. Its totient is φ = 9329535164928.

The previous prime is 30321131500447. The next prime is 30321131500453. The reversal of 30321131500452 is 25400513112303.

It is not an unprimeable number, because it can be changed into a prime (30321131500453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52761853 + ... + 53333435.

It is an arithmetic number, because the mean of its divisors is an integer number (1587331636800).

Almost surely, 2^{30321131500452} is an apocalyptic number.

It is an amenable number.

30321131500452 is an abundant number, since it is smaller than the sum of its proper divisors (45870787065948).

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

30321131500452 is a wasteful number, since it uses less digits than its factorization.

30321131500452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911652 (or 911650 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 30321131500452 its reverse (25400513112303), we get a palindrome (55721644612755).

The spelling of 30321131500452 in words is "thirty trillion, three hundred twenty-one billion, one hundred thirty-one million, five hundred thousand, four hundred fifty-two".