142232411421 has 12 divisors (see below), whose sum is σ = 206299296060. Its totient is φ = 94428155520.

The previous prime is 142232411407. The next prime is 142232411443. The reversal of 142232411421 is 124114232241.

142232411421 is a `hidden beast` number, since 1 + 4 + 2 + 232 + 4 + 1 + 1 + 421 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 96205428900 + 46026982521 = 310170^2 + 214539^2 .

It is not a de Polignac number, because 142232411421 - 2³⁵ = 107872673053 is a prime.

It is a super-2 number, since 2×142232411421² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142232411221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32785386 + ... + 32789723.

It is an arithmetic number, because the mean of its divisors is an integer number (17191608005).

Almost surely, 2^142232411421 is an apocalyptic number.

It is an amenable number.

142232411421 is a deficient number, since it is larger than the sum of its proper divisors (64066884639).

142232411421 is a wasteful number, since it uses less digits than its factorization.

142232411421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65575356 (or 65575353 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

Adding to 142232411421 its reverse (124114232241), we get a palindrome (266346643662).

The spelling of 142232411421 in words is "one hundred forty-two billion, two hundred thirty-two million, four hundred eleven thousand, four hundred twenty-one".