30820077102 has 16 divisors (see below), whose sum is σ = 61817795712. Its totient is φ = 10243752120.

The previous prime is 30820077059. The next prime is 30820077107. The reversal of 30820077102 is 20177002803.

It is a self number, because there is not a number n which added to its sum of digits gives 30820077102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30820077107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7399474 + ... + 7403637.

It is an arithmetic number, because the mean of its divisors is an integer number (3863612232).

Almost surely, 2^30820077102 is an apocalyptic number.

30820077102 is an abundant number, since it is smaller than the sum of its proper divisors (30997718610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30820077102 is a wasteful number, since it uses less digits than its factorization.

30820077102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14803463.

The product of its (nonzero) digits is 4704, while the sum is 30.

Adding to 30820077102 its reverse (20177002803), we get a palindrome (50997079905).

The spelling of 30820077102 in words is "thirty billion, eight hundred twenty million, seventy-seven thousand, one hundred two".