1012020011011 has 8 divisors (see below), whose sum is σ = 1108500621120. Its totient is φ = 919644958848.

The previous prime is 1012020010987. The next prime is 1012020011027. The reversal of 1012020011011 is 1101100202101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1012020011011 - 2²⁷ = 1011885793283 is a prime.

It is a super-2 number, since 2×1012020011011² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012020011911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1026388971 + ... + 1026389956.

It is an arithmetic number, because the mean of its divisors is an integer number (138562577640).

Almost surely, 2^{1012020011011} is an apocalyptic number.

1012020011011 is a deficient number, since it is larger than the sum of its proper divisors (96480610109).

1012020011011 is a wasteful number, since it uses less digits than its factorization.

1012020011011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2052778973.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1012020011011 its reverse (1101100202101), we get a palindrome (2113120213112).

The spelling of 1012020011011 in words is "one trillion, twelve billion, twenty million, eleven thousand, eleven".