30202039939 has 2 divisors, whose sum is σ = 30202039940. Its totient is φ = 30202039938.

The previous prime is 30202039921. The next prime is 30202039981. The reversal of 30202039939 is 93993020203.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30202039939 - 2⁷ = 30202039811 is a prime.

It is a super-2 number, since 2×30202039939² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30202039039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15101019969 + 15101019970.

It is an arithmetic number, because the mean of its divisors is an integer number (15101019970).

Almost surely, 2^30202039939 is an apocalyptic number.

30202039939 is a deficient number, since it is larger than the sum of its proper divisors (1).

30202039939 is an equidigital number, since it uses as much as digits as its factorization.

30202039939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 78732, while the sum is 40.

The spelling of 30202039939 in words is "thirty billion, two hundred two million, thirty-nine thousand, nine hundred thirty-nine".