20700101 has 12 divisors (see below), whose sum is σ = 23138892. Its totient is φ = 18451584.

The previous prime is 20700083. The next prime is 20700103. The reversal of 20700101 is 10100702.

It can be written as a sum of positive squares in 2 ways, for example, as 18931201 + 1768900 = 4351^2 + 1330^2 .

It is not a de Polignac number, because 20700101 - 2⁶ = 20700037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20700103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4451 + ... + 7823.

It is an arithmetic number, because the mean of its divisors is an integer number (1928241).

Almost surely, 2^20700101 is an apocalyptic number.

It is an amenable number.

20700101 is a deficient number, since it is larger than the sum of its proper divisors (2438791).

20700101 is a wasteful number, since it uses less digits than its factorization.

20700101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3428 (or 3409 counting only the distinct ones).

The product of its (nonzero) digits is 14, while the sum is 11.

The square root of 20700101 is about 4549.7363659887. The cubic root of 20700101 is about 274.5727845939.

Adding to 20700101 its reverse (10100702), we get a palindrome (30800803).

The spelling of 20700101 in words is "twenty million, seven hundred thousand, one hundred one".