10115321355091 has 2 divisors, whose sum is σ = 10115321355092. Its totient is φ = 10115321355090.

The previous prime is 10115321355077. The next prime is 10115321355103. The reversal of 10115321355091 is 19055312351101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10115321355091 - 2¹¹ = 10115321353043 is a prime.

It is a super-2 number, since 2×10115321355091² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10115321355091.

It is not a weakly prime, because it can be changed into another prime (10115321352091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5057660677545 + 5057660677546.

It is an arithmetic number, because the mean of its divisors is an integer number (5057660677546).

Almost surely, 2^{10115321355091} is an apocalyptic number.

10115321355091 is a deficient number, since it is larger than the sum of its proper divisors (1).

10115321355091 is an equidigital number, since it uses as much as digits as its factorization.

10115321355091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20250, while the sum is 37.

The spelling of 10115321355091 in words is "ten trillion, one hundred fifteen billion, three hundred twenty-one million, three hundred fifty-five thousand, ninety-one".