2100322213031 has 4 divisors (see below), whose sum is σ = 2400368243472. Its totient is φ = 1800276182592.

The previous prime is 2100322212983. The next prime is 2100322213051. The reversal of 2100322213031 is 1303122230012.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2100322213031 is a prime.

It is a super-2 number, since 2×2100322213031² (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 = 2100322212994 and 2100322213012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100322213051) 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, 150023015210 + ... + 150023015223.

It is an arithmetic number, because the mean of its divisors is an integer number (600092060868).

Almost surely, 2^{2100322213031} is an apocalyptic number.

2100322213031 is a deficient number, since it is larger than the sum of its proper divisors (300046030441).

2100322213031 is an equidigital number, since it uses as much as digits as its factorization.

2100322213031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300046030440.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 2100322213031 its reverse (1303122230012), we get a palindrome (3403444443043).

The spelling of 2100322213031 in words is "two trillion, one hundred billion, three hundred twenty-two million, two hundred thirteen thousand, thirty-one".