1223062143 has 4 divisors (see below), whose sum is σ = 1630749528. Its totient is φ = 815374760.

The previous prime is 1223062111. The next prime is 1223062147. The reversal of 1223062143 is 3412603221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3412603221 = 3 ⋅1137534407.

It is a cyclic number.

It is not a de Polignac number, because 1223062143 - 2⁵ = 1223062111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223062147) 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, 203843688 + ... + 203843693.

It is an arithmetic number, because the mean of its divisors is an integer number (407687382).

Almost surely, 2^1223062143 is an apocalyptic number.

1223062143 is a deficient number, since it is larger than the sum of its proper divisors (407687385).

1223062143 is an equidigital number, since it uses as much as digits as its factorization.

1223062143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407687384.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 1223062143 is about 34972.3053715365. The cubic root of 1223062143 is about 1069.4229698018.

Adding to 1223062143 its reverse (3412603221), we get a palindrome (4635665364).

The spelling of 1223062143 in words is "one billion, two hundred twenty-three million, sixty-two thousand, one hundred forty-three".