2131101220443 has 8 divisors (see below), whose sum is σ = 3060042778128. Its totient is φ = 1311446904864.

The previous prime is 2131101220411. The next prime is 2131101220453. The reversal of 2131101220443 is 3440221011312.

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

It is not a de Polignac number, because 2131101220443 - 2⁵ = 2131101220411 is a prime.

It is a super-2 number, since 2×2131101220443² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2131101220453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27321810480 + ... + 27321810557.

It is an arithmetic number, because the mean of its divisors is an integer number (382505347266).

Almost surely, 2^{2131101220443} is an apocalyptic number.

2131101220443 is a deficient number, since it is larger than the sum of its proper divisors (928941557685).

2131101220443 is a wasteful number, since it uses less digits than its factorization.

2131101220443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54643621053.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 2131101220443 its reverse (3440221011312), we get a palindrome (5571322231755).

The spelling of 2131101220443 in words is "two trillion, one hundred thirty-one billion, one hundred one million, two hundred twenty thousand, four hundred forty-three".