20100032101 has 4 divisors (see below), whose sum is σ = 20567474752. Its totient is φ = 19632589452.

The previous prime is 20100032087. The next prime is 20100032111. The reversal of 20100032101 is 10123000102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20100032101 - 2¹⁵ = 20099999333 is a prime.

It is a super-2 number, since 2×20100032101² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100032111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233721261 + ... + 233721346.

It is an arithmetic number, because the mean of its divisors is an integer number (5141868688).

Almost surely, 2^20100032101 is an apocalyptic number.

It is an amenable number.

20100032101 is a deficient number, since it is larger than the sum of its proper divisors (467442651).

20100032101 is an equidigital number, since it uses as much as digits as its factorization.

20100032101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467442650.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 20100032101 its reverse (10123000102), we get a palindrome (30223032203).

The spelling of 20100032101 in words is "twenty billion, one hundred million, thirty-two thousand, one hundred one".