1011213373 has 2 divisors, whose sum is σ = 1011213374. Its totient is φ = 1011213372.

The previous prime is 1011213353. The next prime is 1011213419. The reversal of 1011213373 is 3733121101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 660849849 + 350363524 = 25707^2 + 18718^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1011213373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1011213323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505606686 + 505606687.

It is an arithmetic number, because the mean of its divisors is an integer number (505606687).

Almost surely, 2^1011213373 is an apocalyptic number.

It is an amenable number.

1011213373 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011213373 is an equidigital number, since it uses as much as digits as its factorization.

1011213373 is an evil number, because the sum of its binary digits is even.

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

The square root of 1011213373 is about 31799.5813337220. The cubic root of 1011213373 is about 1003.7239063081.

Adding to 1011213373 its reverse (3733121101), we get a palindrome (4744334474).

The spelling of 1011213373 in words is "one billion, eleven million, two hundred thirteen thousand, three hundred seventy-three".