2113211320031 has 4 divisors (see below), whose sum is σ = 2415098651472. Its totient is φ = 1811323988592.

The previous prime is 2113211319997. The next prime is 2113211320039. The reversal of 2113211320031 is 1300231123112.

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 2113211320031 - 2¹⁸ = 2113211057887 is a prime.

It is a super-2 number, since 2×2113211320031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2113211319985 and 2113211320012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113211320039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150943665710 + ... + 150943665723.

It is an arithmetic number, because the mean of its divisors is an integer number (603774662868).

Almost surely, 2^{2113211320031} is an apocalyptic number.

2113211320031 is a deficient number, since it is larger than the sum of its proper divisors (301887331441).

2113211320031 is an equidigital number, since it uses as much as digits as its factorization.

2113211320031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301887331440.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 2113211320031 its reverse (1300231123112), we get a palindrome (3413442443143).

The spelling of 2113211320031 in words is "two trillion, one hundred thirteen billion, two hundred eleven million, three hundred twenty thousand, thirty-one".