3111421203 has 24 divisors (see below), whose sum is σ = 4916948400. Its totient is φ = 1880285760.

The previous prime is 3111421193. The next prime is 3111421231. The reversal of 3111421203 is 3021241113.

3111421203 is a `hidden beast` number, since 31 + 11 + 421 + 203 = 666.

It is not a de Polignac number, because 3111421203 - 2⁸ = 3111420947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3111421303) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10476 + ... + 79577.

It is an arithmetic number, because the mean of its divisors is an integer number (204872850).

Almost surely, 2^3111421203 is an apocalyptic number.

3111421203 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

3111421203 is a deficient number, since it is larger than the sum of its proper divisors (1805527197).

3111421203 is a wasteful number, since it uses less digits than its factorization.

3111421203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90419 (or 90416 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 3111421203 is about 55780.1147632380. The cubic root of 3111421203 is about 1459.8882135904. Note that the first 3 decimals are identical.

Adding to 3111421203 its reverse (3021241113), we get a palindrome (6132662316).

The spelling of 3111421203 in words is "three billion, one hundred eleven million, four hundred twenty-one thousand, two hundred three".