20801111110802 has 32 divisors (see below), whose sum is σ = 34090523854848. Its totient is φ = 9440516250000.

The previous prime is 20801111110781. The next prime is 20801111110823.

20801111110802 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (20801111110781) and next prime (20801111110823).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81673277 + ... + 81927567.

It is an arithmetic number, because the mean of its divisors is an integer number (1065328870464).

Almost surely, 2^{20801111110802} is an apocalyptic number.

20801111110802 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20801111110802 is a deficient number, since it is larger than the sum of its proper divisors (13289412744046).

20801111110802 is a wasteful number, since it uses less digits than its factorization.

20801111110802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260006.

The product of its (nonzero) digits is 256, while the sum is 26.

It can be divided in two parts, 2080111 and 1110802, that added together give a palindrome (3190913).

The spelling of 20801111110802 in words is "twenty trillion, eight hundred one billion, one hundred eleven million, one hundred ten thousand, eight hundred two".