1233142404421 has 32 divisors (see below), whose sum is σ = 1278760855680. Its totient is φ = 1188630982656.

The previous prime is 1233142404401. The next prime is 1233142404493. The reversal of 1233142404421 is 1244042413321.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1233142404421 - 2²⁷ = 1233008186693 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 (1233142404401) 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, 303952225 + ... + 303956281.

It is an arithmetic number, because the mean of its divisors is an integer number (39961276740).

Almost surely, 2^{1233142404421} is an apocalyptic number.

It is an amenable number.

1233142404421 is a deficient number, since it is larger than the sum of its proper divisors (45618451259).

1233142404421 is a wasteful number, since it uses less digits than its factorization.

1233142404421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4693.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 1233142404421 its reverse (1244042413321), we get a palindrome (2477184817742).

The spelling of 1233142404421 in words is "one trillion, two hundred thirty-three billion, one hundred forty-two million, four hundred four thousand, four hundred twenty-one".