210120211121131 has 2 divisors, whose sum is σ = 210120211121132. Its totient is φ = 210120211121130.

The previous prime is 210120211120997. The next prime is 210120211121137. The reversal of 210120211121131 is 131121112021012.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210120211121131 is a prime.

It is a super-2 number, since 2×210120211121131² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210120211121099 and 210120211121108.

It is not a weakly prime, because it can be changed into another prime (210120211121137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105060105560565 + 105060105560566.

It is an arithmetic number, because the mean of its divisors is an integer number (105060105560566).

Almost surely, 2^{210120211121131} is an apocalyptic number.

210120211121131 is a deficient number, since it is larger than the sum of its proper divisors (1).

210120211121131 is an equidigital number, since it uses as much as digits as its factorization.

210120211121131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 210120211121131 its reverse (131121112021012), we get a palindrome (341241323142143).

The spelling of 210120211121131 in words is "two hundred ten trillion, one hundred twenty billion, two hundred eleven million, one hundred twenty-one thousand, one hundred thirty-one".