1020113101211 has 2 divisors, whose sum is σ = 1020113101212. Its totient is φ = 1020113101210.

The previous prime is 1020113101193. The next prime is 1020113101279. The reversal of 1020113101211 is 1121013110201.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020113101211 is a prime.

It is not a weakly prime, because it can be changed into another prime (1020113104211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510056550605 + 510056550606.

It is an arithmetic number, because the mean of its divisors is an integer number (510056550606).

Almost surely, 2^{1020113101211} is an apocalyptic number.

1020113101211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020113101211 is an equidigital number, since it uses as much as digits as its factorization.

1020113101211 is an evil number, because the sum of its binary digits is even.

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

Adding to 1020113101211 its reverse (1121013110201), we get a palindrome (2141126211412).

The spelling of 1020113101211 in words is "one trillion, twenty billion, one hundred thirteen million, one hundred one thousand, two hundred eleven".