1401866232281 has 2 divisors, whose sum is σ = 1401866232282. Its totient is φ = 1401866232280.

The previous prime is 1401866232251. The next prime is 1401866232307. The reversal of 1401866232281 is 1822326681041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 973495982281 + 428370250000 = 986659^2 + 654500^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1401866232281 is a prime.

It is a super-2 number, since 2×1401866232281² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1401866232251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700933116140 + 700933116141.

It is an arithmetic number, because the mean of its divisors is an integer number (700933116141).

Almost surely, 2^{1401866232281} is an apocalyptic number.

It is an amenable number.

1401866232281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401866232281 is an equidigital number, since it uses as much as digits as its factorization.

1401866232281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 221184, while the sum is 44.

The spelling of 1401866232281 in words is "one trillion, four hundred one billion, eight hundred sixty-six million, two hundred thirty-two thousand, two hundred eighty-one".