1155328125211 has 8 divisors (see below), whose sum is σ = 1244327646464. Its totient is φ = 1066346907840.

The previous prime is 1155328125197. The next prime is 1155328125221. The reversal of 1155328125211 is 1125218235511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1155328125211 - 2²⁹ = 1154791254299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1155328125221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4444731 + ... + 4697476.

It is an arithmetic number, because the mean of its divisors is an integer number (155540955808).

Almost surely, 2^{1155328125211} is an apocalyptic number.

1155328125211 is a deficient number, since it is larger than the sum of its proper divisors (88999521253).

1155328125211 is an equidigital number, since it uses as much as digits as its factorization.

1155328125211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9151941.

The product of its digits is 24000, while the sum is 37.

The spelling of 1155328125211 in words is "one trillion, one hundred fifty-five billion, three hundred twenty-eight million, one hundred twenty-five thousand, two hundred eleven".