11431402 has 4 divisors (see below), whose sum is σ = 17147106. Its totient is φ = 5715700.

The previous prime is 11431393. The next prime is 11431403. The reversal of 11431402 is 20413411.

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

It can be written as a sum of positive squares in only one way, i.e., 7017201 + 4414201 = 2649^2 + 2101^2 .

It is not an unprimeable number, because it can be changed into a prime (11431403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2857849 + ... + 2857852.

Almost surely, 2^11431402 is an apocalyptic number.

11431402 is a deficient number, since it is larger than the sum of its proper divisors (5715704).

11431402 is an equidigital number, since it uses as much as digits as its factorization.

11431402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5715703.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 11431402 is about 3381.0356401552. The cubic root of 11431402 is about 225.2681707832.

Adding to 11431402 its reverse (20413411), we get a palindrome (31844813).

Subtracting 11431402 from its reverse (20413411), we obtain a square (8982009 = 2997²).

The spelling of 11431402 in words is "eleven million, four hundred thirty-one thousand, four hundred two".