30102321989 has 2 divisors, whose sum is σ = 30102321990. Its totient is φ = 30102321988.

The previous prime is 30102321947. The next prime is 30102322031. The reversal of 30102321989 is 98912320103.

It is a balanced prime because it is at equal distance from previous prime (30102321947) and next prime (30102322031).

It can be written as a sum of positive squares in only one way, i.e., 23269977025 + 6832344964 = 152545^2 + 82658^2 .

It is a cyclic number.

It is not a de Polignac number, because 30102321989 - 2²⁴ = 30085544773 is a prime.

It is a super-2 number, since 2×30102321989² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30102321089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15051160994 + 15051160995.

It is an arithmetic number, because the mean of its divisors is an integer number (15051160995).

Almost surely, 2^30102321989 is an apocalyptic number.

It is an amenable number.

30102321989 is a deficient number, since it is larger than the sum of its proper divisors (1).

30102321989 is an equidigital number, since it uses as much as digits as its factorization.

30102321989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 38.

The spelling of 30102321989 in words is "thirty billion, one hundred two million, three hundred twenty-one thousand, nine hundred eighty-nine".