1142201140421 has 4 divisors (see below), whose sum is σ = 1246037607744. Its totient is φ = 1038364673100.

The previous prime is 1142201140411. The next prime is 1142201140469. The reversal of 1142201140421 is 1240411022411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1142201140421 - 2²⁶ = 1142134031557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142201140411) 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 3 ways as a sum of consecutive naturals, for example, 51918233645 + ... + 51918233666.

It is an arithmetic number, because the mean of its divisors is an integer number (311509401936).

Almost surely, 2^{1142201140421} is an apocalyptic number.

1142201140421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1142201140421 is a deficient number, since it is larger than the sum of its proper divisors (103836467323).

1142201140421 is a wasteful number, since it uses less digits than its factorization.

1142201140421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103836467322.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 1142201140421 its reverse (1240411022411), we get a palindrome (2382612162832).

The spelling of 1142201140421 in words is "one trillion, one hundred forty-two billion, two hundred one million, one hundred forty thousand, four hundred twenty-one".