30681030302 has 32 divisors (see below), whose sum is σ = 50027181120. Its totient is φ = 14111554080.

The previous prime is 30681030301. The next prime is 30681030353. The reversal of 30681030302 is 20303018603.

It is a super-2 number, since 2×30681030302² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30681030301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1275527 + ... + 1299357.

It is an arithmetic number, because the mean of its divisors is an integer number (1563349410).

Almost surely, 2^30681030302 is an apocalyptic number.

30681030302 is a deficient number, since it is larger than the sum of its proper divisors (19346150818).

30681030302 is a wasteful number, since it uses less digits than its factorization.

30681030302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24165 (or 24139 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 30681030302 its reverse (20303018603), we get a palindrome (50984048905).

The spelling of 30681030302 in words is "thirty billion, six hundred eighty-one million, thirty thousand, three hundred two".