30003312121 has 12 divisors (see below), whose sum is σ = 32550173568. Its totient is φ = 27637581632.

The previous prime is 30003312109. The next prime is 30003312133. The reversal of 30003312121 is 12121330003.

It is an interprime number because it is at equal distance from previous prime (30003312109) and next prime (30003312133).

It is not a de Polignac number, because 30003312121 - 2⁵ = 30003312089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30003312095 and 30003312104.

It is not an unprimeable number, because it can be changed into a prime (30003312721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1090861 + ... + 1118026.

It is an arithmetic number, because the mean of its divisors is an integer number (2712514464).

Almost surely, 2^30003312121 is an apocalyptic number.

It is an amenable number.

30003312121 is a deficient number, since it is larger than the sum of its proper divisors (2546861447).

30003312121 is a wasteful number, since it uses less digits than its factorization.

30003312121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2208968 (or 2208951 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 30003312121 its reverse (12121330003), we get a palindrome (42124642124).

The spelling of 30003312121 in words is "thirty billion, three million, three hundred twelve thousand, one hundred twenty-one".