2120311131203 has 2 divisors, whose sum is σ = 2120311131204. Its totient is φ = 2120311131202.

The previous prime is 2120311131193. The next prime is 2120311131251. The reversal of 2120311131203 is 3021311130212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2120311131203 - 2⁴ = 2120311131187 is a prime.

It is not a weakly prime, because it can be changed into another prime (2120311131403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060155565601 + 1060155565602.

It is an arithmetic number, because the mean of its divisors is an integer number (1060155565602).

Almost surely, 2^{2120311131203} is an apocalyptic number.

2120311131203 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120311131203 is an equidigital number, since it uses as much as digits as its factorization.

2120311131203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 2120311131203 its reverse (3021311130212), we get a palindrome (5141622261415).

Subtracting 2120311131203 from its reverse (3021311130212), we obtain a palindrome (900999999009).

The spelling of 2120311131203 in words is "two trillion, one hundred twenty billion, three hundred eleven million, one hundred thirty-one thousand, two hundred three".