2121031130347 has 2 divisors, whose sum is σ = 2121031130348. Its totient is φ = 2121031130346.

The previous prime is 2121031130329. The next prime is 2121031130363. The reversal of 2121031130347 is 7430311301212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2121031130347 - 2¹⁹ = 2121030606059 is a prime.

It is not a weakly prime, because it can be changed into another prime (2121031130047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060515565173 + 1060515565174.

It is an arithmetic number, because the mean of its divisors is an integer number (1060515565174).

Almost surely, 2^{2121031130347} is an apocalyptic number.

2121031130347 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121031130347 is an equidigital number, since it uses as much as digits as its factorization.

2121031130347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

Adding to 2121031130347 its reverse (7430311301212), we get a palindrome (9551342431559).

The spelling of 2121031130347 in words is "two trillion, one hundred twenty-one billion, thirty-one million, one hundred thirty thousand, three hundred forty-seven".