1153011044531 has 4 divisors (see below), whose sum is σ = 1184173505232. Its totient is φ = 1121848583832.

The previous prime is 1153011044519. The next prime is 1153011044569. The reversal of 1153011044531 is 1354401103511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1153011044531 - 2¹⁰ = 1153011043507 is a prime.

It is a super-2 number, since 2×1153011044531² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1153011044494 and 1153011044503.

It is not an unprimeable number, because it can be changed into a prime (1153011043531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15581230295 + ... + 15581230368.

It is an arithmetic number, because the mean of its divisors is an integer number (296043376308).

Almost surely, 2^{1153011044531} is an apocalyptic number.

1153011044531 is a deficient number, since it is larger than the sum of its proper divisors (31162460701).

1153011044531 is an equidigital number, since it uses as much as digits as its factorization.

1153011044531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31162460700.

The product of its (nonzero) digits is 3600, while the sum is 29.

The spelling of 1153011044531 in words is "one trillion, one hundred fifty-three billion, eleven million, forty-four thousand, five hundred thirty-one".