2131323310201 has 2 divisors, whose sum is σ = 2131323310202. Its totient is φ = 2131323310200.

The previous prime is 2131323310199. The next prime is 2131323310223. The reversal of 2131323310201 is 1020133231312.

It is an a-pointer prime, because the next prime (2131323310223) can be obtained adding 2131323310201 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1343269410025 + 788053900176 = 1158995^2 + 887724^2 .

It is a cyclic number.

It is not a de Polignac number, because 2131323310201 - 2¹ = 2131323310199 is a prime.

It is a super-2 number, since 2×2131323310201² (a number of 25 digits) contains 22 as substring.

Together with 2131323310199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2131323310271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065661655100 + 1065661655101.

It is an arithmetic number, because the mean of its divisors is an integer number (1065661655101).

Almost surely, 2^{2131323310201} is an apocalyptic number.

It is an amenable number.

2131323310201 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131323310201 is an equidigital number, since it uses as much as digits as its factorization.

2131323310201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 2131323310201 its reverse (1020133231312), we get a palindrome (3151456541513).

The spelling of 2131323310201 in words is "two trillion, one hundred thirty-one billion, three hundred twenty-three million, three hundred ten thousand, two hundred one".