30102121001 has 2 divisors, whose sum is σ = 30102121002. Its totient is φ = 30102121000.

The previous prime is 30102120953. The next prime is 30102121037. The reversal of 30102121001 is 10012120103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16343065600 + 13759055401 = 127840^2 + 117299^2 .

It is a cyclic number.

It is not a de Polignac number, because 30102121001 - 2¹⁰ = 30102119977 is a prime.

It is a super-2 number, since 2×30102121001² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30102121081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15051060500 + 15051060501.

It is an arithmetic number, because the mean of its divisors is an integer number (15051060501).

Almost surely, 2^30102121001 is an apocalyptic number.

It is an amenable number.

30102121001 is a deficient number, since it is larger than the sum of its proper divisors (1).

30102121001 is an equidigital number, since it uses as much as digits as its factorization.

30102121001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 30102121001 its reverse (10012120103), we get a palindrome (40114241104).

The spelling of 30102121001 in words is "thirty billion, one hundred two million, one hundred twenty-one thousand, one".