1111131755533 has 2 divisors, whose sum is σ = 1111131755534. Its totient is φ = 1111131755532.

The previous prime is 1111131755501. The next prime is 1111131755599. The reversal of 1111131755533 is 3355571311111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1098444436489 + 12687319044 = 1048067^2 + 112638^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111131755533 - 2⁵ = 1111131755501 is a prime.

It is a super-2 number, since 2×1111131755533² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1111131755492 and 1111131755501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111131725533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555565877766 + 555565877767.

It is an arithmetic number, because the mean of its divisors is an integer number (555565877767).

Almost surely, 2^{1111131755533} is an apocalyptic number.

It is an amenable number.

1111131755533 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111131755533 is an equidigital number, since it uses as much as digits as its factorization.

1111131755533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23625, while the sum is 37.

The spelling of 1111131755533 in words is "one trillion, one hundred eleven billion, one hundred thirty-one million, seven hundred fifty-five thousand, five hundred thirty-three".