1101012020001 has 16 divisors (see below), whose sum is σ = 1631215900800. Its totient is φ = 733968871344.

The previous prime is 1101012019927. The next prime is 1101012020011. The reversal of 1101012020001 is 1000202101011.

It is a happy number.

It is not a de Polignac number, because 1101012020001 - 2⁷ = 1101012019873 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (1101012020011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 567061 + ... + 1588578.

It is an arithmetic number, because the mean of its divisors is an integer number (101950993800).

Almost surely, 2^{1101012020001} is an apocalyptic number.

It is an amenable number.

1101012020001 is a deficient number, since it is larger than the sum of its proper divisors (530203880799).

1101012020001 is a wasteful number, since it uses less digits than its factorization.

1101012020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2174565 (or 2174559 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1101012020001 its reverse (1000202101011), we get a palindrome (2101214121012).

The spelling of 1101012020001 in words is "one trillion, one hundred one billion, twelve million, twenty thousand, one".