306729123413 has 4 divisors (see below), whose sum is σ = 307479072780. Its totient is φ = 305979174048.

The previous prime is 306729123401. The next prime is 306729123427. The reversal of 306729123413 is 314321927603.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 314321927603 = 751 ⋅418537853.

It can be written as a sum of positive squares in 2 ways, for example, as 288693439204 + 18035684209 = 537302^2 + 134297^2 .

It is a cyclic number.

It is not a de Polignac number, because 306729123413 - 2⁴ = 306729123397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306729113413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 374974070 + ... + 374974887.

It is an arithmetic number, because the mean of its divisors is an integer number (76869768195).

Almost surely, 2^306729123413 is an apocalyptic number.

It is an amenable number.

306729123413 is a deficient number, since it is larger than the sum of its proper divisors (749949367).

306729123413 is an equidigital number, since it uses as much as digits as its factorization.

306729123413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749949366.

The product of its (nonzero) digits is 163296, while the sum is 41.

The spelling of 306729123413 in words is "three hundred six billion, seven hundred twenty-nine million, one hundred twenty-three thousand, four hundred thirteen".