1144535551131 has 64 divisors (see below), whose sum is σ = 1761369292800. Its totient is φ = 647570160000.

The previous prime is 1144535551121. The next prime is 1144535551151. The reversal of 1144535551131 is 1311555354411.

It is not a de Polignac number, because 1144535551131 - 2¹³ = 1144535542939 is a prime.

It is a super-2 number, since 2×1144535551131² (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 1144535551131.

It is not an unprimeable number, because it can be changed into a prime (1144535551111) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1123194340 + ... + 1123195358.

It is an arithmetic number, because the mean of its divisors is an integer number (27521395200).

Almost surely, 2^{1144535551131} is an apocalyptic number.

1144535551131 is a deficient number, since it is larger than the sum of its proper divisors (616833741669).

1144535551131 is a wasteful number, since it uses less digits than its factorization.

1144535551131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2320.

The product of its digits is 90000, while the sum is 39.

The spelling of 1144535551131 in words is "one trillion, one hundred forty-four billion, five hundred thirty-five million, five hundred fifty-one thousand, one hundred thirty-one".