1143150411261 has 16 divisors (see below), whose sum is σ = 1605740068800. Its totient is φ = 721396435968.

The previous prime is 1143150411259. The next prime is 1143150411269. The reversal of 1143150411261 is 1621140513411.

It is not a de Polignac number, because 1143150411261 - 2¹ = 1143150411259 is a prime.

It is a super-2 number, since 2×1143150411261² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143150411269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8170266 + ... + 8309003.

It is an arithmetic number, because the mean of its divisors is an integer number (100358754300).

Almost surely, 2^{1143150411261} is an apocalyptic number.

It is an amenable number.

1143150411261 is a deficient number, since it is larger than the sum of its proper divisors (462589657539).

1143150411261 is a wasteful number, since it uses less digits than its factorization.

1143150411261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16480508.

The product of its (nonzero) digits is 2880, while the sum is 30.

Adding to 1143150411261 its reverse (1621140513411), we get a palindrome (2764290924672).

The spelling of 1143150411261 in words is "one trillion, one hundred forty-three billion, one hundred fifty million, four hundred eleven thousand, two hundred sixty-one".