3111403 has 2 divisors, whose sum is σ = 3111404. Its totient is φ = 3111402.

The previous prime is 3111397. The next prime is 3111419. The reversal of 3111403 is 3041113.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3111403 - 2¹³ = 3103211 is a prime.

It is not a weakly prime, because it can be changed into another prime (3111803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1555701 + 1555702.

It is an arithmetic number, because the mean of its divisors is an integer number (1555702).

Almost surely, 2^3111403 is an apocalyptic number.

3111403 is a deficient number, since it is larger than the sum of its proper divisors (1).

3111403 is an equidigital number, since it uses as much as digits as its factorization.

3111403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 3111403 is about 1763.9169481583. The cubic root of 3111403 is about 145.9885366617.

Adding to 3111403 its reverse (3041113), we get a palindrome (6152516).

The spelling of 3111403 in words is "three million, one hundred eleven thousand, four hundred three".