1111402403 has 4 divisors (see below), whose sum is σ = 1112491968. Its totient is φ = 1110312840.

The previous prime is 1111402399. The next prime is 1111402417. The reversal of 1111402403 is 3042041111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3042041111 = 23 ⋅132262657.

It is a cyclic number.

It is not a de Polignac number, because 1111402403 - 2² = 1111402399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111402423) 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, 543251 + ... + 545292.

It is an arithmetic number, because the mean of its divisors is an integer number (278122992).

Almost surely, 2^1111402403 is an apocalyptic number.

1111402403 is a deficient number, since it is larger than the sum of its proper divisors (1089565).

1111402403 is a wasteful number, since it uses less digits than its factorization.

1111402403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1089564.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1111402403 is about 33337.7024253322. The cubic root of 1111402403 is about 1035.8346719055.

Adding to 1111402403 its reverse (3042041111), we get a palindrome (4153443514).

The spelling of 1111402403 in words is "one billion, one hundred eleven million, four hundred two thousand, four hundred three".