2131223100133 has 2 divisors, whose sum is σ = 2131223100134. Its totient is φ = 2131223100132.

The previous prime is 2131223100109. The next prime is 2131223100161. The reversal of 2131223100133 is 3310013221312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2107093205889 + 24129894244 = 1451583^2 + 155338^2 .

It is a cyclic number.

It is not a de Polignac number, because 2131223100133 - 2¹³ = 2131223091941 is a prime.

It is a super-2 number, since 2×2131223100133² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2131223100233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065611550066 + 1065611550067.

It is an arithmetic number, because the mean of its divisors is an integer number (1065611550067).

Almost surely, 2^{2131223100133} is an apocalyptic number.

It is an amenable number.

2131223100133 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131223100133 is an equidigital number, since it uses as much as digits as its factorization.

2131223100133 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 2131223100133 its reverse (3310013221312), we get a palindrome (5441236321445).

The spelling of 2131223100133 in words is "two trillion, one hundred thirty-one billion, two hundred twenty-three million, one hundred thousand, one hundred thirty-three".