1513242344381 has 2 divisors, whose sum is σ = 1513242344382. Its totient is φ = 1513242344380.

The previous prime is 1513242344377. The next prime is 1513242344443. The reversal of 1513242344381 is 1834432423151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 927850562500 + 585391781881 = 963250^2 + 765109^2 .

It is a cyclic number.

It is not a de Polignac number, because 1513242344381 - 2² = 1513242344377 is a prime.

It is a super-2 number, since 2×1513242344381² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1513242344681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 756621172190 + 756621172191.

It is an arithmetic number, because the mean of its divisors is an integer number (756621172191).

Almost surely, 2^{1513242344381} is an apocalyptic number.

It is an amenable number.

1513242344381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1513242344381 is an equidigital number, since it uses as much as digits as its factorization.

1513242344381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 276480, while the sum is 41.

The spelling of 1513242344381 in words is "one trillion, five hundred thirteen billion, two hundred forty-two million, three hundred forty-four thousand, three hundred eighty-one".