20106100511401 has 16 divisors (see below), whose sum is σ = 20609000584704. Its totient is φ = 19606421807104.

The previous prime is 20106100511347. The next prime is 20106100511407. The reversal of 20106100511401 is 10411500160102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20106100511401 - 2¹¹ = 20106100509353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20106100511407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19693356 + ... + 20689138.

It is an arithmetic number, because the mean of its divisors is an integer number (1288062536544).

Almost surely, 2^{20106100511401} is an apocalyptic number.

It is an amenable number.

20106100511401 is a deficient number, since it is larger than the sum of its proper divisors (502900073303).

20106100511401 is a wasteful number, since it uses less digits than its factorization.

20106100511401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997400.

The product of its (nonzero) digits is 240, while the sum is 22.

Adding to 20106100511401 its reverse (10411500160102), we get a palindrome (30517600671503).

The spelling of 20106100511401 in words is "twenty trillion, one hundred six billion, one hundred million, five hundred eleven thousand, four hundred one".