11402031 has 16 divisors (see below), whose sum is σ = 15747200. Its totient is φ = 7332768.

The previous prime is 11402023. The next prime is 11402047. The reversal of 11402031 is 13020411.

It is a happy number.

It is not a de Polignac number, because 11402031 - 2³ = 11402023 is a prime.

It is a super-2 number, since 2×11402031² = 260012621849922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11401998 and 11402016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11402011) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 15060 + ... + 15798.

It is an arithmetic number, because the mean of its divisors is an integer number (984200).

Almost surely, 2^11402031 is an apocalyptic number.

11402031 is a deficient number, since it is larger than the sum of its proper divisors (4345169).

11402031 is a wasteful number, since it uses less digits than its factorization.

11402031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918.

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

The square root of 11402031 is about 3376.6893549748. The cubic root of 11402031 is about 225.0750761810.

Adding to 11402031 its reverse (13020411), we get a palindrome (24422442).

The spelling of 11402031 in words is "eleven million, four hundred two thousand, thirty-one".