20404205023102 has 8 divisors (see below), whose sum is σ = 30646107676800. Its totient is φ = 10188835797504.

The previous prime is 20404205023091. The next prime is 20404205023121. The reversal of 20404205023102 is 20132050240402.

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

It is a super-3 number, since 3×20404205023102³ (a number of 41 digits) contains 333 as substring.

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, 6633355102 + ... + 6633358177.

It is an arithmetic number, because the mean of its divisors is an integer number (3830763459600).

Almost surely, 2^{20404205023102} is an apocalyptic number.

20404205023102 is a deficient number, since it is larger than the sum of its proper divisors (10241902653698).

20404205023102 is a wasteful number, since it uses less digits than its factorization.

20404205023102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13266714050.

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 20404205023102 its reverse (20132050240402), we get a palindrome (40536255263504).

The spelling of 20404205023102 in words is "twenty trillion, four hundred four billion, two hundred five million, twenty-three thousand, one hundred two".