1331112073 has 2 divisors, whose sum is σ = 1331112074. Its totient is φ = 1331112072.

The previous prime is 1331112061. The next prime is 1331112137. The reversal of 1331112073 is 3702111331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1041159289 + 289952784 = 32267^2 + 17028^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1331112073 is a prime.

It is not a weakly prime, because it can be changed into another prime (1331112023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665556036 + 665556037.

It is an arithmetic number, because the mean of its divisors is an integer number (665556037).

Almost surely, 2^1331112073 is an apocalyptic number.

It is an amenable number.

1331112073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331112073 is an equidigital number, since it uses as much as digits as its factorization.

1331112073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 1331112073 is about 36484.4086288924. The cubic root of 1331112073 is about 1100.0308732382.

The spelling of 1331112073 in words is "one billion, three hundred thirty-one million, one hundred twelve thousand, seventy-three".