20910011001902 has 8 divisors (see below), whose sum is σ = 34216381639512. Its totient is φ = 9504550455400.

The previous prime is 20910011001881. The next prime is 20910011002007.

20910011001902 is nontrivially palindromic in base 10.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 475227522749 + ... + 475227522792.

It is an arithmetic number, because the mean of its divisors is an integer number (4277047704939).

Almost surely, 2^{20910011001902} is an apocalyptic number.

20910011001902 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20910011001902 is a deficient number, since it is larger than the sum of its proper divisors (13306370637610).

20910011001902 is a wasteful number, since it uses less digits than its factorization.

20910011001902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950455045554.

The product of its (nonzero) digits is 324, while the sum is 26.

It can be divided in two parts, 2091001 and 1001902, that added together give a palindrome (3092903).

The spelling of 20910011001902 in words is "twenty trillion, nine hundred ten billion, eleven million, one thousand, nine hundred two".