1213034377 has 2 divisors, whose sum is σ = 1213034378. Its totient is φ = 1213034376.

The previous prime is 1213034363. The next prime is 1213034413. The reversal of 1213034377 is 7734303121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 917847616 + 295186761 = 30296^2 + 17181^2 .

It is a cyclic number.

It is not a de Polignac number, because 1213034377 - 2¹⁵ = 1213001609 is a prime.

It is not a weakly prime, because it can be changed into another prime (1213031377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606517188 + 606517189.

It is an arithmetic number, because the mean of its divisors is an integer number (606517189).

Almost surely, 2^1213034377 is an apocalyptic number.

It is an amenable number.

1213034377 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213034377 is an equidigital number, since it uses as much as digits as its factorization.

1213034377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584, while the sum is 31.

The square root of 1213034377 is about 34828.6430542449. The cubic root of 1213034377 is about 1066.4922477288.

Adding to 1213034377 its reverse (7734303121), we get a palindrome (8947337498).

The spelling of 1213034377 in words is "one billion, two hundred thirteen million, thirty-four thousand, three hundred seventy-seven".