20345110101 has 12 divisors (see below), whose sum is σ = 30012645312. Its totient is φ = 13274823336.

The previous prime is 20345110067. The next prime is 20345110129. The reversal of 20345110101 is 10101154302.

20345110101 is a `hidden beast` number, since 20 + 34 + 511 + 0 + 101 = 666.

It is not a de Polignac number, because 20345110101 - 2²⁵ = 20311555669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20345110151) 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, 24048171 + ... + 24049016.

It is an arithmetic number, because the mean of its divisors is an integer number (2501053776).

Almost surely, 2^20345110101 is an apocalyptic number.

It is an amenable number.

20345110101 is a deficient number, since it is larger than the sum of its proper divisors (9667535211).

20345110101 is a wasteful number, since it uses less digits than its factorization.

20345110101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48097240 (or 48097237 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 20345110101 its reverse (10101154302), we get a palindrome (30446264403).

The spelling of 20345110101 in words is "twenty billion, three hundred forty-five million, one hundred ten thousand, one hundred one".