20213040111 has 8 divisors (see below), whose sum is σ = 29400785664. Its totient is φ = 12250327320.

The previous prime is 20213040091. The next prime is 20213040131. The reversal of 20213040111 is 11104031202.

It is an interprime number because it is at equal distance from previous prime (20213040091) and next prime (20213040131).

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

It is not a de Polignac number, because 20213040111 - 2¹⁰ = 20213039087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20213040131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306258151 + ... + 306258216.

It is an arithmetic number, because the mean of its divisors is an integer number (3675098208).

Almost surely, 2^20213040111 is an apocalyptic number.

20213040111 is a deficient number, since it is larger than the sum of its proper divisors (9187745553).

20213040111 is a wasteful number, since it uses less digits than its factorization.

20213040111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612516381.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 20213040111 its reverse (11104031202), we get a palindrome (31317071313).

The spelling of 20213040111 in words is "twenty billion, two hundred thirteen million, forty thousand, one hundred eleven".