2231000332081 has 2 divisors, whose sum is σ = 2231000332082. Its totient is φ = 2231000332080.

The previous prime is 2231000332061. The next prime is 2231000332153. The reversal of 2231000332081 is 1802330001322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1553974162225 + 677026169856 = 1246585^2 + 822816^2 .

It is a cyclic number.

It is not a de Polignac number, because 2231000332081 - 2⁴¹ = 31977076529 is a prime.

It is a super-3 number, since 3×2231000332081³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (2231000332061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115500166040 + 1115500166041.

It is an arithmetic number, because the mean of its divisors is an integer number (1115500166041).

Almost surely, 2^{2231000332081} is an apocalyptic number.

It is an amenable number.

2231000332081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231000332081 is an equidigital number, since it uses as much as digits as its factorization.

2231000332081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

The spelling of 2231000332081 in words is "two trillion, two hundred thirty-one billion, three hundred thirty-two thousand, eighty-one".