1143421204101 has 32 divisors (see below), whose sum is σ = 1722224664576. Its totient is φ = 668512536000.

The previous prime is 1143421204063. The next prime is 1143421204109. The reversal of 1143421204101 is 1014021243411.

It is a happy number.

It is not a de Polignac number, because 1143421204101 - 2³¹ = 1141273720453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143421204109) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1438665 + ... + 2087246.

It is an arithmetic number, because the mean of its divisors is an integer number (53819520768).

Almost surely, 2^{1143421204101} is an apocalyptic number.

1143421204101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1143421204101 is a deficient number, since it is larger than the sum of its proper divisors (578803460475).

1143421204101 is a wasteful number, since it uses less digits than its factorization.

1143421204101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3526273.

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 1143421204101 its reverse (1014021243411), we get a palindrome (2157442447512).

The spelling of 1143421204101 in words is "one trillion, one hundred forty-three billion, four hundred twenty-one million, two hundred four thousand, one hundred one".