1131911433473 has 2 divisors, whose sum is σ = 1131911433474. Its totient is φ = 1131911433472.

The previous prime is 1131911433467. The next prime is 1131911433557. The reversal of 1131911433473 is 3743341191311.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 987972385024 + 143939048449 = 993968^2 + 379393^2 .

It is a cyclic number.

It is not a de Polignac number, because 1131911433473 - 2⁸ = 1131911433217 is a prime.

It is a super-3 number, since 3×1131911433473³ (a number of 37 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1131911433473.

It is not a weakly prime, because it can be changed into another prime (1131911433463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565955716736 + 565955716737.

It is an arithmetic number, because the mean of its divisors is an integer number (565955716737).

Almost surely, 2^{1131911433473} is an apocalyptic number.

It is an amenable number.

1131911433473 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131911433473 is an equidigital number, since it uses as much as digits as its factorization.

1131911433473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 41.

The spelling of 1131911433473 in words is "one trillion, one hundred thirty-one billion, nine hundred eleven million, four hundred thirty-three thousand, four hundred seventy-three".