1153530021311 has 2 divisors, whose sum is σ = 1153530021312. Its totient is φ = 1153530021310.

The previous prime is 1153530021269. The next prime is 1153530021341. The reversal of 1153530021311 is 1131200353511.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1153530021311 - 2¹⁴ = 1153530004927 is a prime.

It is a super-2 number, since 2×1153530021311² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1153530021341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576765010655 + 576765010656.

It is an arithmetic number, because the mean of its divisors is an integer number (576765010656).

Almost surely, 2^{1153530021311} is an apocalyptic number.

1153530021311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1153530021311 is an equidigital number, since it uses as much as digits as its factorization.

1153530021311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1350, while the sum is 26.

Adding to 1153530021311 its reverse (1131200353511), we get a palindrome (2284730374822).

The spelling of 1153530021311 in words is "one trillion, one hundred fifty-three billion, five hundred thirty million, twenty-one thousand, three hundred eleven".