1143402223 has 4 divisors (see below), whose sum is σ = 1143674208. Its totient is φ = 1143130240.

The previous prime is 1143402217. The next prime is 1143402257. The reversal of 1143402223 is 3222043411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3222043411 = 46523 ⋅69257.

It is a cyclic number.

It is not a de Polignac number, because 1143402223 - 2⁹ = 1143401711 is a prime.

It is a super-2 number, since 2×1143402223² = 2614737287122683458, 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 = 1143402194 and 1143402203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143402263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129586 + ... + 138127.

It is an arithmetic number, because the mean of its divisors is an integer number (285918552).

Almost surely, 2^1143402223 is an apocalyptic number.

1143402223 is a deficient number, since it is larger than the sum of its proper divisors (271985).

1143402223 is an equidigital number, since it uses as much as digits as its factorization.

1143402223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271984.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1143402223 is about 33814.2310721388. The cubic root of 1143402223 is about 1045.6821086374.

Adding to 1143402223 its reverse (3222043411), we get a palindrome (4365445634).

The spelling of 1143402223 in words is "one billion, one hundred forty-three million, four hundred two thousand, two hundred twenty-three".