13121154242253 has 16 divisors (see below), whose sum is σ = 19486274540800. Its totient is φ = 8726048779680.

The previous prime is 13121154242249. The next prime is 13121154242293. The reversal of 13121154242253 is 35224245112131.

13121154242253 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 1 + 1 + 5 + 424 + 225 + 3 = 666.

It is not a de Polignac number, because 13121154242253 - 2² = 13121154242249 is a prime.

It is a super-2 number, since 2×13121154242253² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121154242293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 594082693 + ... + 594104778.

It is an arithmetic number, because the mean of its divisors is an integer number (1217892158800).

Almost surely, 2^{13121154242253} is an apocalyptic number.

It is an amenable number.

13121154242253 is a deficient number, since it is larger than the sum of its proper divisors (6365120298547).

13121154242253 is a wasteful number, since it uses less digits than its factorization.

13121154242253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188187889 (or 1188187883 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

Adding to 13121154242253 its reverse (35224245112131), we get a palindrome (48345399354384).

The spelling of 13121154242253 in words is "thirteen trillion, one hundred twenty-one billion, one hundred fifty-four million, two hundred forty-two thousand, two hundred fifty-three".