306742013231 has 4 divisors (see below), whose sum is σ = 307286848632. Its totient is φ = 306197177832.

The previous prime is 306742013167. The next prime is 306742013239. The reversal of 306742013231 is 132310247603.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 306742013231 - 2⁶ = 306742013167 is a prime.

It is a super-2 number, since 2×306742013231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306742013239) 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, 272416856 + ... + 272417981.

It is an arithmetic number, because the mean of its divisors is an integer number (76821712158).

Almost surely, 2^306742013231 is an apocalyptic number.

306742013231 is a deficient number, since it is larger than the sum of its proper divisors (544835401).

306742013231 is an equidigital number, since it uses as much as digits as its factorization.

306742013231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544835400.

The product of its (nonzero) digits is 18144, while the sum is 32.

The spelling of 306742013231 in words is "three hundred six billion, seven hundred forty-two million, thirteen thousand, two hundred thirty-one".