119811531553 has 6 divisors (see below), whose sum is σ = 139372597986. Its totient is φ = 102695598432.

The previous prime is 119811531547. The next prime is 119811531563. The reversal of 119811531553 is 355135118911.

It can be written as a sum of positive squares in only one way, i.e., 108905280064 + 10906251489 = 330008^2 + 104433^2 .

It is not a de Polignac number, because 119811531553 - 2¹³ = 119811523361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (119811531563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1222566600 + ... + 1222566697.

It is an arithmetic number, because the mean of its divisors is an integer number (23228766331).

Almost surely, 2^119811531553 is an apocalyptic number.

It is an amenable number.

119811531553 is a deficient number, since it is larger than the sum of its proper divisors (19561066433).

119811531553 is an equidigital number, since it uses as much as digits as its factorization.

119811531553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2445133311 (or 2445133304 counting only the distinct ones).

The product of its digits is 81000, while the sum is 43.

The spelling of 119811531553 in words is "one hundred nineteen billion, eight hundred eleven million, five hundred thirty-one thousand, five hundred fifty-three".