100961558403 has 8 divisors (see below), whose sum is σ = 134879883600. Its totient is φ = 67175469408.

The previous prime is 100961558329. The next prime is 100961558441. The reversal of 100961558403 is 304855169001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100961558403 - 2¹² = 100961554307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100961558303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33057268 + ... + 33060321.

It is an arithmetic number, because the mean of its divisors is an integer number (16859985450).

Almost surely, 2^100961558403 is an apocalyptic number.

100961558403 is a deficient number, since it is larger than the sum of its proper divisors (33918325197).

100961558403 is an equidigital number, since it uses as much as digits as its factorization.

100961558403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66118101.

The product of its (nonzero) digits is 129600, while the sum is 42.

The spelling of 100961558403 in words is "one hundred billion, nine hundred sixty-one million, five hundred fifty-eight thousand, four hundred three".