251041022100613 has 2 divisors, whose sum is σ = 251041022100614. Its totient is φ = 251041022100612.

The previous prime is 251041022100611. The next prime is 251041022100667. The reversal of 251041022100613 is 316001220140152.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 205058762736129 + 45982259364484 = 14319873^2 + 6781022^2 .

It is a cyclic number.

It is not a de Polignac number, because 251041022100613 - 2¹ = 251041022100611 is a prime.

Together with 251041022100611, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (251041022100611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125520511050306 + 125520511050307.

It is an arithmetic number, because the mean of its divisors is an integer number (125520511050307).

Almost surely, 2^{251041022100613} is an apocalyptic number.

It is an amenable number.

251041022100613 is a deficient number, since it is larger than the sum of its proper divisors (1).

251041022100613 is an equidigital number, since it uses as much as digits as its factorization.

251041022100613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 251041022100613 its reverse (316001220140152), we get a palindrome (567042242240765).

The spelling of 251041022100613 in words is "two hundred fifty-one trillion, forty-one billion, twenty-two million, one hundred thousand, six hundred thirteen".