1220023351 has 2 divisors, whose sum is σ = 1220023352. Its totient is φ = 1220023350.

The previous prime is 1220023331. The next prime is 1220023369. The reversal of 1220023351 is 1533200221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1220023351 - 2⁵ = 1220023319 is a prime.

It is a super-3 number, since 3×1220023351³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220023331) 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, 610011675 + 610011676.

It is an arithmetic number, because the mean of its divisors is an integer number (610011676).

Almost surely, 2^1220023351 is an apocalyptic number.

1220023351 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220023351 is an equidigital number, since it uses as much as digits as its factorization.

1220023351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 1220023351 is about 34928.8326601391. The cubic root of 1220023351 is about 1068.5365473835.

Adding to 1220023351 its reverse (1533200221), we get a palindrome (2753223572).

The spelling of 1220023351 in words is "one billion, two hundred twenty million, twenty-three thousand, three hundred fifty-one".