1143205505151 has 4 divisors (see below), whose sum is σ = 1524274006872. Its totient is φ = 762137003432.

The previous prime is 1143205505137. The next prime is 1143205505161. The reversal of 1143205505151 is 1515055023411.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1143205505151 - 2¹¹ = 1143205503103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143205505161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190534250856 + ... + 190534250861.

It is an arithmetic number, because the mean of its divisors is an integer number (381068501718).

Almost surely, 2^{1143205505151} is an apocalyptic number.

1143205505151 is a deficient number, since it is larger than the sum of its proper divisors (381068501721).

1143205505151 is an equidigital number, since it uses as much as digits as its factorization.

1143205505151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381068501720.

The product of its (nonzero) digits is 15000, while the sum is 33.

The spelling of 1143205505151 in words is "one trillion, one hundred forty-three billion, two hundred five million, five hundred five thousand, one hundred fifty-one".