1101143431 has 8 divisors (see below), whose sum is σ = 1166471280. Its totient is φ = 1035877248.

The previous prime is 1101143429. The next prime is 1101143453. The reversal of 1101143431 is 1343411011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1101143431 - 2¹ = 1101143429 is a prime.

It is a super-2 number, since 2×1101143431² = 2425033711268903522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1101143399 and 1101143408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101143411) 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 7 ways as a sum of consecutive naturals, for example, 24300 + ... + 52846.

It is an arithmetic number, because the mean of its divisors is an integer number (145808910).

Almost surely, 2^1101143431 is an apocalyptic number.

1101143431 is a deficient number, since it is larger than the sum of its proper divisors (65327849).

1101143431 is a wasteful number, since it uses less digits than its factorization.

1101143431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30833.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1101143431 is about 33183.4812971756. The cubic root of 1101143431 is about 1032.6376707107.

Adding to 1101143431 its reverse (1343411011), we get a palindrome (2444554442).

The spelling of 1101143431 in words is "one billion, one hundred one million, one hundred forty-three thousand, four hundred thirty-one".