30215245234453 has 4 divisors (see below), whose sum is σ = 30215259916128. Its totient is φ = 30215230552780.

The previous prime is 30215245234441. The next prime is 30215245234457. The reversal of 30215245234453 is 35443254251203.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30215245234453 - 2²⁵ = 30215211680021 is a prime.

It is a super-2 number, since 2×30215245234453² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30215245234457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3627763 + ... + 8578528.

It is an arithmetic number, because the mean of its divisors is an integer number (7553814979032).

Almost surely, 2^{30215245234453} is an apocalyptic number.

It is an amenable number.

30215245234453 is a deficient number, since it is larger than the sum of its proper divisors (14681675).

30215245234453 is a wasteful number, since it uses less digits than its factorization.

30215245234453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14681674.

The product of its (nonzero) digits is 1728000, while the sum is 43.

Adding to 30215245234453 its reverse (35443254251203), we get a palindrome (65658499485656).

The spelling of 30215245234453 in words is "thirty trillion, two hundred fifteen billion, two hundred forty-five million, two hundred thirty-four thousand, four hundred fifty-three".