1220143023 has 48 divisors (see below), whose sum is σ = 2064621312. Its totient is φ = 686112000.

The previous prime is 1220143003. The next prime is 1220143033. The reversal of 1220143023 is 3203410221.

1220143023 is a `hidden beast` number, since 12 + 201 + 430 + 23 = 666.

It is not a de Polignac number, because 1220143023 - 2⁸ = 1220142767 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1220142987 and 1220143005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220143003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 114388 + ... + 124598.

It is an arithmetic number, because the mean of its divisors is an integer number (43012944).

Almost surely, 2^1220143023 is an apocalyptic number.

1220143023 is a deficient number, since it is larger than the sum of its proper divisors (844478289).

1220143023 is a wasteful number, since it uses less digits than its factorization.

1220143023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10316 (or 10313 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1220143023 is about 34930.5457014344. The cubic root of 1220143023 is about 1068.5714837981.

Adding to 1220143023 its reverse (3203410221), we get a palindrome (4423553244).

The spelling of 1220143023 in words is "one billion, two hundred twenty million, one hundred forty-three thousand, twenty-three".