20901101001 has 8 divisors (see below), whose sum is σ = 30401601504. Its totient is φ = 12667333920.

The previous prime is 20901100981. The next prime is 20901101003. The reversal of 20901101001 is 10010110902.

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

It is not a de Polignac number, because 20901101001 - 2¹³ = 20901092809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20901101003) 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, 316683316 + ... + 316683381.

It is an arithmetic number, because the mean of its divisors is an integer number (3800200188).

Almost surely, 2^20901101001 is an apocalyptic number.

It is an amenable number.

20901101001 is a deficient number, since it is larger than the sum of its proper divisors (9500500503).

20901101001 is a wasteful number, since it uses less digits than its factorization.

20901101001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633366711.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 20901101001 its reverse (10010110902), we get a palindrome (30911211903).

The spelling of 20901101001 in words is "twenty billion, nine hundred one million, one hundred one thousand, one".