10121943 has 8 divisors (see below), whose sum is σ = 14534128. Its totient is φ = 6228864.

The previous prime is 10121939. The next prime is 10121959. The reversal of 10121943 is 34912101.

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

It is not a de Polignac number, because 10121943 - 2² = 10121939 is a prime.

It is the 3182-nd Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121963) by changing a digit.

It is a nontrivial repunit in base 3181.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129730 + ... + 129807.

It is an arithmetic number, because the mean of its divisors is an integer number (1816766).

Almost surely, 2^10121943 is an apocalyptic number.

10121943 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

10121943 is a deficient number, since it is larger than the sum of its proper divisors (4412185).

10121943 is a wasteful number, since it uses less digits than its factorization.

10121943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259553.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 10121943 is about 3181.5001178689. The cubic root of 10121943 is about 216.3156607277.

The spelling of 10121943 in words is "ten million, one hundred twenty-one thousand, nine hundred forty-three".