100043002 has 4 divisors (see below), whose sum is σ = 150064506. Its totient is φ = 50021500.

The previous prime is 100042991. The next prime is 100043003. The reversal of 100043002 is 200340001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 200340001 = 401 ⋅499601.

It can be written as a sum of positive squares in only one way, i.e., 99980001 + 63001 = 9999^2 + 251^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 100043002.

It is not an unprimeable number, because it can be changed into a prime (100043003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25010749 + ... + 25010752.

Almost surely, 2^100043002 is an apocalyptic number.

100043002 is a deficient number, since it is larger than the sum of its proper divisors (50021504).

100043002 is an equidigital number, since it uses as much as digits as its factorization.

100043002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50021503.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 100043002 is about 10002.1498689032. The cubic root of 100043002 is about 464.2254063611.

Adding to 100043002 its reverse (200340001), we get a palindrome (300383003).

The spelling of 100043002 in words is "one hundred million, forty-three thousand, two".