30003131313121 has 4 divisors (see below), whose sum is σ = 30003352289200. Its totient is φ = 30002910337044.

The previous prime is 30003131313109. The next prime is 30003131313157. The reversal of 30003131313121 is 12131313130003.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30003131313121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30003131313092 and 30003131313101.

It is not an unprimeable number, because it can be changed into a prime (30003131310121) 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, 110284251 + ... + 110555968.

It is an arithmetic number, because the mean of its divisors is an integer number (7500838072300).

Almost surely, 2^{30003131313121} is an apocalyptic number.

It is an amenable number.

30003131313121 is a deficient number, since it is larger than the sum of its proper divisors (220976079).

30003131313121 is a wasteful number, since it uses less digits than its factorization.

30003131313121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220976078.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 30003131313121 its reverse (12131313130003), we get a palindrome (42134444443124).

The spelling of 30003131313121 in words is "thirty trillion, three billion, one hundred thirty-one million, three hundred thirteen thousand, one hundred twenty-one".