1131045131544 has 128 divisors (see below), whose sum is σ = 2934392832000. Its totient is φ = 362910510720.

The previous prime is 1131045131519. The next prime is 1131045131561. The reversal of 1131045131544 is 4451315401311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 236271919 + ... + 236276705.

It is an arithmetic number, because the mean of its divisors is an integer number (22924944000).

Almost surely, 2^{1131045131544} 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 1131045131544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1467196416000).

1131045131544 is an abundant number, since it is smaller than the sum of its proper divisors (1803347700456).

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

1131045131544 is a wasteful number, since it uses less digits than its factorization.

1131045131544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6453 (or 6449 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The spelling of 1131045131544 in words is "one trillion, one hundred thirty-one billion, forty-five million, one hundred thirty-one thousand, five hundred forty-four".