245013042021 has 8 divisors (see below), whose sum is σ = 356382606624. Its totient is φ = 148492752720.

The previous prime is 245013042019. The next prime is 245013042031. The reversal of 245013042021 is 120240310542.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 245013042021 - 2¹ = 245013042019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 245013041982 and 245013042000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245013042031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3712318786 + ... + 3712318851.

It is an arithmetic number, because the mean of its divisors is an integer number (44547825828).

Almost surely, 2^245013042021 is an apocalyptic number.

It is an amenable number.

245013042021 is a deficient number, since it is larger than the sum of its proper divisors (111369564603).

245013042021 is a wasteful number, since it uses less digits than its factorization.

245013042021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7424637651.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 245013042021 its reverse (120240310542), we get a palindrome (365253352563).

The spelling of 245013042021 in words is "two hundred forty-five billion, thirteen million, forty-two thousand, twenty-one".