100491043041 has 24 divisors (see below), whose sum is σ = 150909105984. Its totient is φ = 66825213840.

The previous prime is 100491043039. The next prime is 100491043153. The reversal of 100491043041 is 140340194001.

100491043041 is a `hidden beast` number, since 100 + 4 + 91 + 0 + 430 + 41 = 666.

It is not a de Polignac number, because 100491043041 - 2¹ = 100491043039 is a prime.

It is a super-2 number, since 2×100491043041² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 100491042996 and 100491043014.

It is not an unprimeable number, because it can be changed into a prime (100491043021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 424365 + ... + 617306.

It is an arithmetic number, because the mean of its divisors is an integer number (6287879416).

Almost surely, 2^100491043041 is an apocalyptic number.

It is an amenable number.

100491043041 is a deficient number, since it is larger than the sum of its proper divisors (50418062943).

100491043041 is an equidigital number, since it uses as much as digits as its factorization.

100491043041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042083 (or 1042071 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The spelling of 100491043041 in words is "one hundred billion, four hundred ninety-one million, forty-three thousand, forty-one".