1003402111 has 4 divisors (see below), whose sum is σ = 1010726352. Its totient is φ = 996077872.

The previous prime is 1003402093. The next prime is 1003402123. The reversal of 1003402111 is 1112043001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1003402111 - 2¹⁹ = 1002877823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1003402091 and 1003402100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003402171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3661915 + ... + 3662188.

It is an arithmetic number, because the mean of its divisors is an integer number (252681588).

Almost surely, 2^1003402111 is an apocalyptic number.

1003402111 is a deficient number, since it is larger than the sum of its proper divisors (7324241).

1003402111 is an equidigital number, since it uses as much as digits as its factorization.

1003402111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7324240.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1003402111 is about 31676.5230257363. The cubic root of 1003402111 is about 1001.1327533853.

Adding to 1003402111 its reverse (1112043001), we get a palindrome (2115445112).

The spelling of 1003402111 in words is "one billion, three million, four hundred two thousand, one hundred eleven".