30102122111 has 4 divisors (see below), whose sum is σ = 30227027424. Its totient is φ = 29977216800.

The previous prime is 30102121993. The next prime is 30102122131. The reversal of 30102122111 is 11122120103.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30102122111 - 2¹⁰ = 30102121087 is a prime.

It is a super-2 number, since 2×30102122111² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30102122131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62452295 + ... + 62452776.

It is an arithmetic number, because the mean of its divisors is an integer number (7556756856).

Almost surely, 2^30102122111 is an apocalyptic number.

30102122111 is a deficient number, since it is larger than the sum of its proper divisors (124905313).

30102122111 is a wasteful number, since it uses less digits than its factorization.

30102122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124905312.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 30102122111 its reverse (11122120103), we get a palindrome (41224242214).

The spelling of 30102122111 in words is "thirty billion, one hundred two million, one hundred twenty-two thousand, one hundred eleven".