1143911229615 has 216 divisors, whose sum is σ = 2543097879504. Its totient is φ = 473918860800.

The previous prime is 1143911229611. The next prime is 1143911229623. The reversal of 1143911229615 is 5169221193411.

1143911229615 is a `hidden beast` number, since 1 + 1 + 4 + 3 + 9 + 1 + 1 + 2 + 29 + 615 = 666.

It is not a de Polignac number, because 1143911229615 - 2² = 1143911229611 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143911229611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 88305979 + ... + 88318931.

It is an arithmetic number, because the mean of its divisors is an integer number (11773601294).

Almost surely, 2^{1143911229615} is an apocalyptic number.

1143911229615 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1143911229615 is an abundant number, since it is smaller than the sum of its proper divisors (1399186649889).

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

1143911229615 is a wasteful number, since it uses less digits than its factorization.

1143911229615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13331 (or 13310 counting only the distinct ones).

The product of its digits is 116640, while the sum is 45.

The spelling of 1143911229615 in words is "one trillion, one hundred forty-three billion, nine hundred eleven million, two hundred twenty-nine thousand, six hundred fifteen".