1213753310929 has 2 divisors, whose sum is σ = 1213753310930. Its totient is φ = 1213753310928.

The previous prime is 1213753310897. The next prime is 1213753310977. The reversal of 1213753310929 is 9290133573121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1165363430400 + 48389880529 = 1079520^2 + 219977^2 .

It is a cyclic number.

It is not a de Polignac number, because 1213753310929 - 2⁵ = 1213753310897 is a prime.

It is a super-2 number, since 2×1213753310929² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1213753310989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606876655464 + 606876655465.

It is an arithmetic number, because the mean of its divisors is an integer number (606876655465).

Almost surely, 2^{1213753310929} is an apocalyptic number.

It is an amenable number.

1213753310929 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213753310929 is an equidigital number, since it uses as much as digits as its factorization.

1213753310929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 306180, while the sum is 46.

The spelling of 1213753310929 in words is "one trillion, two hundred thirteen billion, seven hundred fifty-three million, three hundred ten thousand, nine hundred twenty-nine".