100006465381 has 2 divisors, whose sum is σ = 100006465382. Its totient is φ = 100006465380.

The previous prime is 100006465343. The next prime is 100006465387. The reversal of 100006465381 is 183564600001.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53391496356 + 46614969025 = 231066^2 + 215905^2 .

It is an emirp because it is prime and its reverse (183564600001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100006465381 - 2³¹ = 97858981733 is a prime.

It is a super-2 number, since 2×100006465381² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100006465387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50003232690 + 50003232691.

It is an arithmetic number, because the mean of its divisors is an integer number (50003232691).

Almost surely, 2^100006465381 is an apocalyptic number.

It is an amenable number.

100006465381 is a deficient number, since it is larger than the sum of its proper divisors (1).

100006465381 is an equidigital number, since it uses as much as digits as its factorization.

100006465381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 100006465381 in words is "one hundred billion, six million, four hundred sixty-five thousand, three hundred eighty-one".