30939331037 has 4 divisors (see below), whose sum is σ = 31286964060. Its totient is φ = 30591698016.

The previous prime is 30939331013. The next prime is 30939331091. The reversal of 30939331037 is 73013393903.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73013393903 = 2683 ⋅27213341.

It can be written as a sum of positive squares in 2 ways, for example, as 12340099396 + 18599231641 = 111086^2 + 136379^2 .

It is not a de Polignac number, because 30939331037 - 2⁶ = 30939330973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30939330985 and 30939331003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30939331537) 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, 173816378 + ... + 173816555.

It is an arithmetic number, because the mean of its divisors is an integer number (7821741015).

Almost surely, 2^30939331037 is an apocalyptic number.

It is an amenable number.

30939331037 is a deficient number, since it is larger than the sum of its proper divisors (347633023).

30939331037 is an equidigital number, since it uses as much as digits as its factorization.

30939331037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347633022.

The product of its (nonzero) digits is 137781, while the sum is 41.

The spelling of 30939331037 in words is "thirty billion, nine hundred thirty-nine million, three hundred thirty-one thousand, thirty-seven".