1220231359 has 2 divisors, whose sum is σ = 1220231360. Its totient is φ = 1220231358.

The previous prime is 1220231329. The next prime is 1220231413. The reversal of 1220231359 is 9531320221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1220231359 - 2¹⁵ = 1220198591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220231329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610115679 + 610115680.

It is an arithmetic number, because the mean of its divisors is an integer number (610115680).

Almost surely, 2^1220231359 is an apocalyptic number.

1220231359 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220231359 is an equidigital number, since it uses as much as digits as its factorization.

1220231359 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 1220231359 is about 34931.8101305959. The cubic root of 1220231359 is about 1068.5972706801.

The spelling of 1220231359 in words is "one billion, two hundred twenty million, two hundred thirty-one thousand, three hundred fifty-nine".