30213442121252 has 48 divisors (see below), whose sum is σ = 58021471594800. Its totient is φ = 13680049264128.

The previous prime is 30213442121251. The next prime is 30213442121279. The reversal of 30213442121252 is 25212124431203.

It can be written as a sum of positive squares in 8 ways, for example, as 263719223296 + 29949722897956 = 513536^2 + 5472634^2 .

It is not an unprimeable number, because it can be changed into a prime (30213442121251) 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, 24570374 + ... + 25770722.

It is an arithmetic number, because the mean of its divisors is an integer number (1208780658225).

Almost surely, 2^{30213442121252} is an apocalyptic number.

It is an amenable number.

30213442121252 is a deficient number, since it is larger than the sum of its proper divisors (27808029473548).

30213442121252 is a wasteful number, since it uses less digits than its factorization.

30213442121252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209552 (or 1209550 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 30213442121252 its reverse (25212124431203), we get a palindrome (55425566552455).

The spelling of 30213442121252 in words is "thirty trillion, two hundred thirteen billion, four hundred forty-two million, one hundred twenty-one thousand, two hundred fifty-two".