20212011012113 has 4 divisors (see below), whose sum is σ = 20244983298228. Its totient is φ = 20179038726000.

The previous prime is 20212011012107. The next prime is 20212011012133. The reversal of 20212011012113 is 31121011021202.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6098291958784 + 14113719053329 = 2469472^2 + 3756823^2 .

It is a cyclic number.

It is not a de Polignac number, because 20212011012113 - 2⁶ = 20212011012049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20212011012091 and 20212011012100.

It is not an unprimeable number, because it can be changed into a prime (20212011012133) 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, 16486142138 + ... + 16486143363.

It is an arithmetic number, because the mean of its divisors is an integer number (5061245824557).

Almost surely, 2^{20212011012113} is an apocalyptic number.

It is an amenable number.

20212011012113 is a deficient number, since it is larger than the sum of its proper divisors (32972286115).

20212011012113 is an equidigital number, since it uses as much as digits as its factorization.

20212011012113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32972286114.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 20212011012113 its reverse (31121011021202), we get a palindrome (51333022033315).

The spelling of 20212011012113 in words is "twenty trillion, two hundred twelve billion, eleven million, twelve thousand, one hundred thirteen".