1144631820531 has 8 divisors (see below), whose sum is σ = 1526219651520. Its totient is φ = 763065934952.

The previous prime is 1144631820523. The next prime is 1144631820547. The reversal of 1144631820531 is 1350281364411.

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 1144631820531 - 2³ = 1144631820523 is a prime.

It is a super-2 number, since 2×1144631820531² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1144631820531.

It is not an unprimeable number, because it can be changed into a prime (1144631825531) 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, 5364261 + ... + 5573558.

It is an arithmetic number, because the mean of its divisors is an integer number (190777456440).

Almost surely, 2^{1144631820531} is an apocalyptic number.

1144631820531 is a deficient number, since it is larger than the sum of its proper divisors (381587830989).

1144631820531 is a wasteful number, since it uses less digits than its factorization.

1144631820531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10972705.

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 1144631820531 in words is "one trillion, one hundred forty-four billion, six hundred thirty-one million, eight hundred twenty thousand, five hundred thirty-one".