1123405402 has 16 divisors (see below), whose sum is σ = 1957410432. Its totient is φ = 473566320.

The previous prime is 1123405397. The next prime is 1123405471. The reversal of 1123405402 is 2045043211.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 656878 + ... + 658585.

It is an arithmetic number, because the mean of its divisors is an integer number (122338152).

Almost surely, 2^1123405402 is an apocalyptic number.

1123405402 is a deficient number, since it is larger than the sum of its proper divisors (834005030).

1123405402 is a wasteful number, since it uses less digits than its factorization.

1123405402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315533.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1123405402 is about 33517.2403696963. The cubic root of 1123405402 is about 1039.5502869503.

Adding to 1123405402 its reverse (2045043211), we get a palindrome (3168448613).

The spelling of 1123405402 in words is "one billion, one hundred twenty-three million, four hundred five thousand, four hundred two".