1020112000121 has 2 divisors, whose sum is σ = 1020112000122. Its totient is φ = 1020112000120.

The previous prime is 1020112000109. The next prime is 1020112000153. The reversal of 1020112000121 is 1210002110201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 644544037225 + 375567962896 = 802835^2 + 612836^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020112000121 is a prime.

It is a super-3 number, since 3×1020112000121³ (a number of 37 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1020112000021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510056000060 + 510056000061.

It is an arithmetic number, because the mean of its divisors is an integer number (510056000061).

Almost surely, 2^{1020112000121} is an apocalyptic number.

It is an amenable number.

1020112000121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020112000121 is an equidigital number, since it uses as much as digits as its factorization.

1020112000121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1020112000121 its reverse (1210002110201), we get a palindrome (2230114110322).

The spelling of 1020112000121 in words is "one trillion, twenty billion, one hundred twelve million, one hundred twenty-one", and thus it is an aban number.