1133945906081 has 2 divisors, whose sum is σ = 1133945906082. Its totient is φ = 1133945906080.

The previous prime is 1133945906057. The next prime is 1133945906147. The reversal of 1133945906081 is 1806095493311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1034931843856 + 99014062225 = 1017316^2 + 314665^2 .

It is a cyclic number.

It is not a de Polignac number, because 1133945906081 - 2⁶ = 1133945906017 is a prime.

It is a super-2 number, since 2×1133945906081² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1133945906021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 566972953040 + 566972953041.

It is an arithmetic number, because the mean of its divisors is an integer number (566972953041).

Almost surely, 2^{1133945906081} is an apocalyptic number.

It is an amenable number.

1133945906081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1133945906081 is an equidigital number, since it uses as much as digits as its factorization.

1133945906081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 699840, while the sum is 50.

The spelling of 1133945906081 in words is "one trillion, one hundred thirty-three billion, nine hundred forty-five million, nine hundred six thousand, eighty-one".