20010010012111 has 8 divisors (see below), whose sum is σ = 23095004484384. Its totient is φ = 16981620943200.

The previous prime is 20010010012093. The next prime is 20010010012121. The reversal of 20010010012111 is 11121001001002.

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

It is a cyclic number.

It is not a de Polignac number, because 20010010012111 - 2²³ = 20010001623503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010010012121) 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, 14151350080 + ... + 14151351493.

It is an arithmetic number, because the mean of its divisors is an integer number (2886875560548).

Almost surely, 2^{20010010012111} is an apocalyptic number.

20010010012111 is a deficient number, since it is larger than the sum of its proper divisors (3084994472273).

20010010012111 is a wasteful number, since it uses less digits than its factorization.

20010010012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28302701681.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 20010010012111 its reverse (11121001001002), we get a palindrome (31131011013113).

The spelling of 20010010012111 in words is "twenty trillion, ten billion, ten million, twelve thousand, one hundred eleven".