1102431 has 12 divisors (see below), whose sum is σ = 1616216. Its totient is φ = 667920.

The previous prime is 1102429. The next prime is 1102441. The reversal of 1102431 is 1342011.

It is a happy number.

It is not a de Polignac number, because 1102431 - 2¹ = 1102429 is a prime.

It is a super-2 number, since 2×1102431² = 2430708219522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1156 + ... + 1881.

2^1102431 is an apocalyptic number.

1102431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1102431 is a deficient number, since it is larger than the sum of its proper divisors (513785).

1102431 is a wasteful number, since it uses less digits than its factorization.

1102431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3062 (or 3051 counting only the distinct ones).

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

The square root of 1102431 is about 1049.9671423430. The cubic root of 1102431 is about 103.3040002299.

Adding to 1102431 its reverse (1342011), we get a palindrome (2444442).

The spelling of 1102431 in words is "one million, one hundred two thousand, four hundred thirty-one".