11613901882381 has 2 divisors, whose sum is σ = 11613901882382. Its totient is φ = 11613901882380.

The previous prime is 11613901882351. The next prime is 11613901882391. The reversal of 11613901882381 is 18328810931611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9712167109225 + 1901734773156 = 3116435^2 + 1379034^2 .

It is a cyclic number.

It is not a de Polignac number, because 11613901882381 - 2¹³ = 11613901874189 is a prime.

It is a super-2 number, since 2×11613901882381² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11613901882301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5806950941190 + 5806950941191.

It is an arithmetic number, because the mean of its divisors is an integer number (5806950941191).

Almost surely, 2^{11613901882381} is an apocalyptic number.

It is an amenable number.

11613901882381 is a deficient number, since it is larger than the sum of its proper divisors (1).

11613901882381 is an equidigital number, since it uses as much as digits as its factorization.

11613901882381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 497664, while the sum is 52.

The spelling of 11613901882381 in words is "eleven trillion, six hundred thirteen billion, nine hundred one million, eight hundred eighty-two thousand, three hundred eighty-one".