20213032123011 has 64 divisors (see below), whose sum is σ = 33478518205440. Its totient is φ = 10562710003200.

The previous prime is 20213032122949. The next prime is 20213032123051. The reversal of 20213032123011 is 11032123031202.

It is not a de Polignac number, because 20213032123011 - 2¹⁴ = 20213032106627 is a prime.

It is a super-2 number, since 2×20213032123011² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (20213032123051) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 272923936 + ... + 272997986.

It is an arithmetic number, because the mean of its divisors is an integer number (523101846960).

Almost surely, 2^{20213032123011} is an apocalyptic number.

20213032123011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20213032123011 is a deficient number, since it is larger than the sum of its proper divisors (13265486082429).

20213032123011 is a wasteful number, since it uses less digits than its factorization.

20213032123011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83356.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 20213032123011 its reverse (11032123031202), we get a palindrome (31245155154213).

The spelling of 20213032123011 in words is "twenty trillion, two hundred thirteen billion, thirty-two million, one hundred twenty-three thousand, eleven".