1040100343 has 4 divisors (see below), whose sum is σ = 1043488600. Its totient is φ = 1036712088.

The previous prime is 1040100293. The next prime is 1040100349. The reversal of 1040100343 is 3430010401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1040100343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040100349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1693668 + ... + 1694281.

It is an arithmetic number, because the mean of its divisors is an integer number (260872150).

Almost surely, 2^1040100343 is an apocalyptic number.

1040100343 is a deficient number, since it is larger than the sum of its proper divisors (3388257).

1040100343 is an equidigital number, since it uses as much as digits as its factorization.

1040100343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3388256.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1040100343 is about 32250.5867078415. The cubic root of 1040100343 is about 1013.1919872127.

Adding to 1040100343 its reverse (3430010401), we get a palindrome (4470110744).

The spelling of 1040100343 in words is "one billion, forty million, one hundred thousand, three hundred forty-three".