1020010111101 has 80 divisors (see below), whose sum is σ = 1597577845248. Its totient is φ = 647791603200.

The previous prime is 1020010111097. The next prime is 1020010111181. The reversal of 1020010111101 is 1011110100201.

It is not a de Polignac number, because 1020010111101 - 2² = 1020010111097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020010111181) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 58555345 + ... + 58572761.

Almost surely, 2^{1020010111101} is an apocalyptic number.

It is an amenable number.

1020010111101 is a deficient number, since it is larger than the sum of its proper divisors (577567734147).

1020010111101 is a wasteful number, since it uses less digits than its factorization.

1020010111101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17824 (or 17815 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 1020010111101 its reverse (1011110100201), we get a palindrome (2031120211302).

The spelling of 1020010111101 in words is "one trillion, twenty billion, ten million, one hundred eleven thousand, one hundred one".