245121241121 has 8 divisors (see below), whose sum is σ = 246792525504. Its totient is φ = 243452379600.

The previous prime is 245121241111. The next prime is 245121241177. The reversal of 245121241121 is 121142121542.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245121241121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245121241111) 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, 402455 + ... + 807596.

It is an arithmetic number, because the mean of its divisors is an integer number (30849065688).

Almost surely, 2^245121241121 is an apocalyptic number.

It is an amenable number.

245121241121 is a deficient number, since it is larger than the sum of its proper divisors (1671284383).

245121241121 is a wasteful number, since it uses less digits than its factorization.

245121241121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211431.

The product of its digits is 1280, while the sum is 26.

Adding to 245121241121 its reverse (121142121542), we get a palindrome (366263362663).

The spelling of 245121241121 in words is "two hundred forty-five billion, one hundred twenty-one million, two hundred forty-one thousand, one hundred twenty-one".