245355304022131 has 4 divisors (see below), whose sum is σ = 248716335584152. Its totient is φ = 241994272460112.

The previous prime is 245355304022119. The next prime is 245355304022237. The reversal of 245355304022131 is 131220403553542.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 245355304022131 - 2¹¹ = 245355304020083 is a prime.

It is a super-3 number, since 3×245355304022131³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245355304022431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1680515780901 + ... + 1680515781046.

It is an arithmetic number, because the mean of its divisors is an integer number (62179083896038).

Almost surely, 2^{245355304022131} is an apocalyptic number.

245355304022131 is a deficient number, since it is larger than the sum of its proper divisors (3361031562021).

245355304022131 is an equidigital number, since it uses as much as digits as its factorization.

245355304022131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3361031562020.

The product of its (nonzero) digits is 432000, while the sum is 40.

Adding to 245355304022131 its reverse (131220403553542), we get a palindrome (376575707575673).

The spelling of 245355304022131 in words is "two hundred forty-five trillion, three hundred fifty-five billion, three hundred four million, twenty-two thousand, one hundred thirty-one".