20012111301 has 32 divisors (see below), whose sum is σ = 33727982848. Its totient is φ = 10270540800.

The previous prime is 20012111299. The next prime is 20012111321. The reversal of 20012111301 is 10311121002.

It is not a de Polignac number, because 20012111301 - 2¹ = 20012111299 is a prime.

It is a super-2 number, since 2×20012111301² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012111321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 980500 + ... + 1000701.

It is an arithmetic number, because the mean of its divisors is an integer number (1053999464).

Almost surely, 2^20012111301 is an apocalyptic number.

20012111301 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20012111301 is a deficient number, since it is larger than the sum of its proper divisors (13715871547).

20012111301 is a wasteful number, since it uses less digits than its factorization.

20012111301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1981261.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 20012111301 its reverse (10311121002), we get a palindrome (30323232303).

The spelling of 20012111301 in words is "twenty billion, twelve million, one hundred eleven thousand, three hundred one".