20200123011 has 8 divisors (see below), whose sum is σ = 28351049920. Its totient is φ = 12757972392.

The previous prime is 20200123003. The next prime is 20200123051. The reversal of 20200123011 is 11032100202.

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

It is not a de Polignac number, because 20200123011 - 2³ = 20200123003 is a prime.

It is a super-2 number, since 2×20200123011² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20200123051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177194005 + ... + 177194118.

It is an arithmetic number, because the mean of its divisors is an integer number (3543881240).

Almost surely, 2^20200123011 is an apocalyptic number.

20200123011 is a deficient number, since it is larger than the sum of its proper divisors (8150926909).

20200123011 is a wasteful number, since it uses less digits than its factorization.

20200123011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354388145.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20200123011 its reverse (11032100202), we get a palindrome (31232223213).

The spelling of 20200123011 in words is "twenty billion, two hundred million, one hundred twenty-three thousand, eleven".