245024323300021 has 4 divisors (see below), whose sum is σ = 255677554747872. Its totient is φ = 234371091852172.

The previous prime is 245024323300007. The next prime is 245024323300073. The reversal of 245024323300021 is 120003323420542.

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 245024323300021 - 2³⁷ = 244886884346549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245024323300091) 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, 5326615723891 + ... + 5326615723936.

It is an arithmetic number, because the mean of its divisors is an integer number (63919388686968).

Almost surely, 2^{245024323300021} is an apocalyptic number.

It is an amenable number.

245024323300021 is a deficient number, since it is larger than the sum of its proper divisors (10653231447851).

245024323300021 is a wasteful number, since it uses less digits than its factorization.

245024323300021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10653231447850.

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 245024323300021 its reverse (120003323420542), we get a palindrome (365027646720563).

The spelling of 245024323300021 in words is "two hundred forty-five trillion, twenty-four billion, three hundred twenty-three million, three hundred thousand, twenty-one".