1131019268544 has 168 divisors, whose sum is σ = 3537590779008. Its totient is φ = 342634897920.

The previous prime is 1131019268531. The next prime is 1131019268569. The reversal of 1131019268544 is 4458629101311.

1131019268544 is a `hidden beast` number, since 1 + 1 + 3 + 10 + 1 + 92 + 6 + 8 + 544 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1131019268544.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23844019 + ... + 23891405.

Almost surely, 2^{1131019268544} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1131019268544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1768795389504).

1131019268544 is an abundant number, since it is smaller than the sum of its proper divisors (2406571510464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1131019268544 is a wasteful number, since it uses less digits than its factorization.

1131019268544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51183 (or 51170 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The spelling of 1131019268544 in words is "one trillion, one hundred thirty-one billion, nineteen million, two hundred sixty-eight thousand, five hundred forty-four".