2121031130363 has 2 divisors, whose sum is σ = 2121031130364. Its totient is φ = 2121031130362.

The previous prime is 2121031130347. The next prime is 2121031130389. The reversal of 2121031130363 is 3630311301212.

It is an a-pointer prime, because the next prime (2121031130389) can be obtained adding 2121031130363 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2121031130363 - 2⁴ = 2121031130347 is a prime.

It is not a weakly prime, because it can be changed into another prime (2121031130263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060515565181 + 1060515565182.

It is an arithmetic number, because the mean of its divisors is an integer number (1060515565182).

Almost surely, 2^{2121031130363} is an apocalyptic number.

2121031130363 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121031130363 is an equidigital number, since it uses as much as digits as its factorization.

2121031130363 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 2121031130363 its reverse (3630311301212), we get a palindrome (5751342431575).

The spelling of 2121031130363 in words is "two trillion, one hundred twenty-one billion, thirty-one million, one hundred thirty thousand, three hundred sixty-three".