11431002 has 64 divisors (see below), whose sum is σ = 26615808. Its totient is φ = 3240000.

The previous prime is 11431001. The next prime is 11431003. The reversal of 11431002 is 20013411.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11431001) and next prime (11431003).

It is not an unprimeable number, because it can be changed into a prime (11431001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75627 + ... + 75777.

It is an arithmetic number, because the mean of its divisors is an integer number (415872).

Almost surely, 2^11431002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11431002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13307904).

11431002 is an abundant number, since it is smaller than the sum of its proper divisors (15184806).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11431002 is a wasteful number, since it uses less digits than its factorization.

11431002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 11431002 is about 3380.9764861649. The cubic root of 11431002 is about 225.2655432747.

Adding to 11431002 its reverse (20013411), we get a palindrome (31444413).

It can be divided in two parts, 1143 and 1002, that added together give a triangular number (2145 = T₆₅).

The spelling of 11431002 in words is "eleven million, four hundred thirty-one thousand, two".