13355203431251 has 4 divisors (see below), whose sum is σ = 14569312834104. Its totient is φ = 12141094028400.

The previous prime is 13355203431247. The next prime is 13355203431329. The reversal of 13355203431251 is 15213430255331.

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 13355203431251 - 2² = 13355203431247 is a prime.

It is a super-2 number, since 2×13355203431251² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13355203430251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 607054701410 + ... + 607054701431.

It is an arithmetic number, because the mean of its divisors is an integer number (3642328208526).

Almost surely, 2^{13355203431251} is an apocalyptic number.

13355203431251 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13355203431251 is a deficient number, since it is larger than the sum of its proper divisors (1214109402853).

13355203431251 is a wasteful number, since it uses less digits than its factorization.

13355203431251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214109402852.

The product of its (nonzero) digits is 162000, while the sum is 38.

Adding to 13355203431251 its reverse (15213430255331), we get a palindrome (28568633686582).

The spelling of 13355203431251 in words is "thirteen trillion, three hundred fifty-five billion, two hundred three million, four hundred thirty-one thousand, two hundred fifty-one".