1142321412251 has 4 divisors (see below), whose sum is σ = 1143682940400. Its totient is φ = 1140959884104.

The previous prime is 1142321412157. The next prime is 1142321412289. The reversal of 1142321412251 is 1522141232411.

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 1142321412251 - 2²² = 1142317217947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142321412151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 680762816 + ... + 680764493.

It is an arithmetic number, because the mean of its divisors is an integer number (285920735100).

Almost surely, 2^{1142321412251} is an apocalyptic number.

1142321412251 is a deficient number, since it is larger than the sum of its proper divisors (1361528149).

1142321412251 is an equidigital number, since it uses as much as digits as its factorization.

1142321412251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361528148.

The product of its digits is 3840, while the sum is 29.

Adding to 1142321412251 its reverse (1522141232411), we get a palindrome (2664462644662).

The spelling of 1142321412251 in words is "one trillion, one hundred forty-two billion, three hundred twenty-one million, four hundred twelve thousand, two hundred fifty-one".