1020212123011 has 2 divisors, whose sum is σ = 1020212123012. Its totient is φ = 1020212123010.

The previous prime is 1020212123009. The next prime is 1020212123023. The reversal of 1020212123011 is 1103212120201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1020212123011 - 2¹ = 1020212123009 is a prime.

It is a super-2 number, since 2×1020212123011² (a number of 25 digits) contains 22 as substring.

Together with 1020212123009, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1020212123111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510106061505 + 510106061506.

It is an arithmetic number, because the mean of its divisors is an integer number (510106061506).

Almost surely, 2^{1020212123011} is an apocalyptic number.

1020212123011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020212123011 is an equidigital number, since it uses as much as digits as its factorization.

1020212123011 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 16.

Adding to 1020212123011 its reverse (1103212120201), we get a palindrome (2123424243212).

The spelling of 1020212123011 in words is "one trillion, twenty billion, two hundred twelve million, one hundred twenty-three thousand, eleven".