100914550981 has 2 divisors, whose sum is σ = 100914550982. Its totient is φ = 100914550980.

The previous prime is 100914550967. The next prime is 100914550993. The reversal of 100914550981 is 189055419001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88471148481 + 12443402500 = 297441^2 + 111550^2 .

It is a cyclic number.

It is not a de Polignac number, because 100914550981 - 2⁷ = 100914550853 is a prime.

It is a super-2 number, since 2×100914550981² (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 (100914550481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50457275490 + 50457275491.

It is an arithmetic number, because the mean of its divisors is an integer number (50457275491).

Almost surely, 2^100914550981 is an apocalyptic number.

It is an amenable number.

100914550981 is a deficient number, since it is larger than the sum of its proper divisors (1).

100914550981 is an equidigital number, since it uses as much as digits as its factorization.

100914550981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 43.

Adding to 100914550981 its reverse (189055419001), we get a palindrome (289969969982).

The spelling of 100914550981 in words is "one hundred billion, nine hundred fourteen million, five hundred fifty thousand, nine hundred eighty-one".