6243121306253 has 32 divisors (see below), whose sum is σ = 6818888990592. Its totient is φ = 5681310566400.

The previous prime is 6243121306171. The next prime is 6243121306259. The reversal of 6243121306253 is 3526031213426.

It is a cyclic number.

It is not a de Polignac number, because 6243121306253 - 2⁸ = 6243121305997 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 (6243121306259) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1368803093 + ... + 1368807653.

It is an arithmetic number, because the mean of its divisors is an integer number (213090280956).

Almost surely, 2^{6243121306253} is an apocalyptic number.

It is an amenable number.

6243121306253 is a deficient number, since it is larger than the sum of its proper divisors (575767684339).

6243121306253 is a wasteful number, since it uses less digits than its factorization.

6243121306253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7085.

The product of its (nonzero) digits is 155520, while the sum is 38.

Adding to 6243121306253 its reverse (3526031213426), we get a palindrome (9769152519679).

The spelling of 6243121306253 in words is "six trillion, two hundred forty-three billion, one hundred twenty-one million, three hundred six thousand, two hundred fifty-three".