3100021243 has 8 divisors (see below), whose sum is σ = 3382975296. Its totient is φ = 2817256200.

The previous prime is 3100021217. The next prime is 3100021261. The reversal of 3100021243 is 3421200013.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-3100021243 is a prime.

It is a super-2 number, since 2×3100021243² = 19220263414102530098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3100021273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11793 + ... + 79618.

It is an arithmetic number, because the mean of its divisors is an integer number (422871912).

Almost surely, 2^3100021243 is an apocalyptic number.

3100021243 is a deficient number, since it is larger than the sum of its proper divisors (282954053).

3100021243 is a wasteful number, since it uses less digits than its factorization.

3100021243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94505.

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

The square root of 3100021243 is about 55677.8343957450. The cubic root of 3100021243 is about 1458.1030664011.

Adding to 3100021243 its reverse (3421200013), we get a palindrome (6521221256).

The spelling of 3100021243 in words is "three billion, one hundred million, twenty-one thousand, two hundred forty-three".