100357710421081 has 2 divisors, whose sum is σ = 100357710421082. Its totient is φ = 100357710421080.

The previous prime is 100357710421049. The next prime is 100357710421091. The reversal of 100357710421081 is 180124017753001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70950028697856 + 29407681723225 = 8423184^2 + 5422885^2 .

It is a cyclic number.

It is not a de Polignac number, because 100357710421081 - 2⁵ = 100357710421049 is a prime.

It is a super-2 number, since 2×100357710421081² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100357710421091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50178855210540 + 50178855210541.

It is an arithmetic number, because the mean of its divisors is an integer number (50178855210541).

Almost surely, 2^{100357710421081} is an apocalyptic number.

It is an amenable number.

100357710421081 is a deficient number, since it is larger than the sum of its proper divisors (1).

100357710421081 is an equidigital number, since it uses as much as digits as its factorization.

100357710421081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47040, while the sum is 40.

The spelling of 100357710421081 in words is "one hundred trillion, three hundred fifty-seven billion, seven hundred ten million, four hundred twenty-one thousand, eighty-one".