20434350105202 has 64 divisors (see below), whose sum is σ = 35124108558336. Its totient is φ = 8825533738560.

The previous prime is 20434350105199. The next prime is 20434350105233. The reversal of 20434350105202 is 20250105343402.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52048428 + ... + 52439560.

It is an arithmetic number, because the mean of its divisors is an integer number (548814196224).

Almost surely, 2^{20434350105202} is an apocalyptic number.

20434350105202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20434350105202 is a deficient number, since it is larger than the sum of its proper divisors (14689758453134).

20434350105202 is a wasteful number, since it uses less digits than its factorization.

20434350105202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391855.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 20434350105202 its reverse (20250105343402), we get a palindrome (40684455448604).

The spelling of 20434350105202 in words is "twenty trillion, four hundred thirty-four billion, three hundred fifty million, one hundred five thousand, two hundred two".