1220023141 has 2 divisors, whose sum is σ = 1220023142. Its totient is φ = 1220023140.

The previous prime is 1220023111. The next prime is 1220023169. The reversal of 1220023141 is 1413200221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1150634241 + 69388900 = 33921^2 + 8330^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220023141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220023111) 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 as a sum of consecutive naturals, namely, 610011570 + 610011571.

It is an arithmetic number, because the mean of its divisors is an integer number (610011571).

Almost surely, 2^1220023141 is an apocalyptic number.

It is an amenable number.

1220023141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220023141 is an equidigital number, since it uses as much as digits as its factorization.

1220023141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1220023141 is about 34928.8296540265. The cubic root of 1220023141 is about 1068.5364860751.

Adding to 1220023141 its reverse (1413200221), we get a palindrome (2633223362).

The spelling of 1220023141 in words is "one billion, two hundred twenty million, twenty-three thousand, one hundred forty-one".