20101313021011 has 16 divisors (see below), whose sum is σ = 20192163608448. Its totient is φ = 20010694636800.

The previous prime is 20101313020949. The next prime is 20101313021051. The reversal of 20101313021011 is 11012031310102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20101313021011 - 2⁹ = 20101313020499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20101313021051) 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, 770654176 + ... + 770680258.

It is an arithmetic number, because the mean of its divisors is an integer number (1262010225528).

Almost surely, 2^{20101313021011} is an apocalyptic number.

20101313021011 is a deficient number, since it is larger than the sum of its proper divisors (90850587437).

20101313021011 is a wasteful number, since it uses less digits than its factorization.

20101313021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30402.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 20101313021011 its reverse (11012031310102), we get a palindrome (31113344331113).

The spelling of 20101313021011 in words is "twenty trillion, one hundred one billion, three hundred thirteen million, twenty-one thousand, eleven".