1000211121131 has 2 divisors, whose sum is σ = 1000211121132. Its totient is φ = 1000211121130.

The previous prime is 1000211121103. The next prime is 1000211121149. The reversal of 1000211121131 is 1311211120001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1000211121131 - 2¹⁸ = 1000210858987 is a prime.

It is a super-2 number, since 2×1000211121131² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1000211121331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500105560565 + 500105560566.

It is an arithmetic number, because the mean of its divisors is an integer number (500105560566).

Almost surely, 2^{1000211121131} is an apocalyptic number.

1000211121131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000211121131 is an equidigital number, since it uses as much as digits as its factorization.

1000211121131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 1000211121131 its reverse (1311211120001), we get a palindrome (2311422241132).

The spelling of 1000211121131 in words is "one trillion, two hundred eleven million, one hundred twenty-one thousand, one hundred thirty-one".