100373961943 has 4 divisors (see below), whose sum is σ = 100465796488. Its totient is φ = 100282127400.

The previous prime is 100373961901. The next prime is 100373961949. The reversal of 100373961943 is 349169373001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 349169373001 = 23 ⋅15181277087.

It is a cyclic number.

It is not a de Polignac number, because 100373961943 - 2¹⁷ = 100373830871 is a prime.

It is a super-2 number, since 2×100373961943² (a number of 23 digits) contains 22 as substring.

It is the 316819-th Hogben number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100373961893 and 100373961902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100373961949) by changing a digit.

It is a nontrivial repunit in base 316818.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45915633 + ... + 45917818.

It is an arithmetic number, because the mean of its divisors is an integer number (25116449122).

Almost surely, 2^100373961943 is an apocalyptic number.

100373961943 is a deficient number, since it is larger than the sum of its proper divisors (91834545).

100373961943 is an equidigital number, since it uses as much as digits as its factorization.

100373961943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91834544.

The product of its (nonzero) digits is 367416, while the sum is 46.

The spelling of 100373961943 in words is "one hundred billion, three hundred seventy-three million, nine hundred sixty-one thousand, nine hundred forty-three".