30123020202 has 32 divisors (see below), whose sum is σ = 65729664000. Its totient is φ = 9127255920.

The previous prime is 30123020201. The next prime is 30123020203. The reversal of 30123020202 is 20202032103.

It is an interprime number because it is at equal distance from previous prime (30123020201) and next prime (30123020203).

It is not an unprimeable number, because it can be changed into a prime (30123020201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 907633 + ... + 940235.

It is an arithmetic number, because the mean of its divisors is an integer number (2054052000).

Almost surely, 2^30123020202 is an apocalyptic number.

30123020202 is an abundant number, since it is smaller than the sum of its proper divisors (35606643798).

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

30123020202 is a wasteful number, since it uses less digits than its factorization.

30123020202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46618.

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 30123020202 its reverse (20202032103), we get a palindrome (50325052305).

The spelling of 30123020202 in words is "thirty billion, one hundred twenty-three million, twenty thousand, two hundred two".