20031102201043 has 4 divisors (see below), whose sum is σ = 21085370737960. Its totient is φ = 18976833664128.

The previous prime is 20031102200981. The next prime is 20031102201049. The reversal of 20031102201043 is 34010220113002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20031102201043 - 2¹³ = 20031102192851 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 1054268536897 = 20031102201043 / (2 + 0 + 0 + 3 + 1 + 1 + 0 + 2 + 2 + 0 + 1 + 0 + 4 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20031102201043.

It is not an unprimeable number, because it can be changed into a prime (20031102201049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 527134268430 + ... + 527134268467.

It is an arithmetic number, because the mean of its divisors is an integer number (5271342684490).

Almost surely, 2^{20031102201043} is an apocalyptic number.

20031102201043 is a deficient number, since it is larger than the sum of its proper divisors (1054268536917).

20031102201043 is a wasteful number, since it uses less digits than its factorization.

20031102201043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054268536916.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20031102201043 its reverse (34010220113002), we get a palindrome (54041322314045).

The spelling of 20031102201043 in words is "twenty trillion, thirty-one billion, one hundred two million, two hundred one thousand, forty-three".