3123430202 has 4 divisors (see below), whose sum is σ = 4685145306. Its totient is φ = 1561715100.

The previous prime is 3123430201. The next prime is 3123430217. The reversal of 3123430202 is 2020343213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2020343213 = 7 ⋅288620459.

It can be written as a sum of positive squares in only one way, i.e., 2247802921 + 875627281 = 47411^2 + 29591^2 .

It is not an unprimeable number, because it can be changed into a prime (3123430201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 780857549 + ... + 780857552.

Almost surely, 2^3123430202 is an apocalyptic number.

3123430202 is a deficient number, since it is larger than the sum of its proper divisors (1561715104).

3123430202 is a wasteful number, since it uses less digits than its factorization.

3123430202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561715103.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 3123430202 is about 55887.6569736109. The cubic root of 3123430202 is about 1461.7640218528.

Adding to 3123430202 its reverse (2020343213), we get a palindrome (5143773415).

The spelling of 3123430202 in words is "three billion, one hundred twenty-three million, four hundred thirty thousand, two hundred two".