1020210102011 has 4 divisors (see below), whose sum is σ = 1064567062992. Its totient is φ = 975853141032.

The previous prime is 1020210101993. The next prime is 1020210102029. The reversal of 1020210102011 is 1102010120201.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1020210101993) and next prime (1020210102029).

It is a cyclic number.

It is not a de Polignac number, because 1020210102011 - 2⁶ = 1020210101947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020210101983 and 1020210102001.

It is not an unprimeable number, because it can be changed into a prime (1020210102071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22178480456 + ... + 22178480501.

It is an arithmetic number, because the mean of its divisors is an integer number (266141765748).

Almost surely, 2^{1020210102011} is an apocalyptic number.

1020210102011 is a deficient number, since it is larger than the sum of its proper divisors (44356960981).

1020210102011 is an equidigital number, since it uses as much as digits as its factorization.

1020210102011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44356960980.

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

Adding to 1020210102011 its reverse (1102010120201), we get a palindrome (2122220222212).

The spelling of 1020210102011 in words is "one trillion, twenty billion, two hundred ten million, one hundred two thousand, eleven".