1142311512505 has 8 divisors (see below), whose sum is σ = 1430372676672. Its totient is φ = 874116635568.

The previous prime is 1142311512493. The next prime is 1142311512527. The reversal of 1142311512505 is 5052151132411.

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 1142311512505 - 2¹⁷ = 1142311381433 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4966571679 + ... + 4966571908.

It is an arithmetic number, because the mean of its divisors is an integer number (178796584584).

Almost surely, 2^{1142311512505} is an apocalyptic number.

It is an amenable number.

1142311512505 is a deficient number, since it is larger than the sum of its proper divisors (288061164167).

1142311512505 is an equidigital number, since it uses as much as digits as its factorization.

1142311512505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9933143615.

The product of its (nonzero) digits is 6000, while the sum is 31.

Adding to 1142311512505 its reverse (5052151132411), we get a palindrome (6194462644916).

The spelling of 1142311512505 in words is "one trillion, one hundred forty-two billion, three hundred eleven million, five hundred twelve thousand, five hundred five".