142124323421 has 8 divisors (see below), whose sum is σ = 143277076800. Its totient is φ = 140976209632.

The previous prime is 142124323409. The next prime is 142124323427. The reversal of 142124323421 is 124323421241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142124323421 - 2¹⁰ = 142124322397 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 (142124323427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1098371 + ... + 1220928.

It is an arithmetic number, because the mean of its divisors is an integer number (17909634600).

Almost surely, 2^142124323421 is an apocalyptic number.

It is an amenable number.

142124323421 is a deficient number, since it is larger than the sum of its proper divisors (1152753379).

142124323421 is a wasteful number, since it uses less digits than its factorization.

142124323421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2319795.

The product of its digits is 9216, while the sum is 29.

Adding to 142124323421 its reverse (124323421241), we get a palindrome (266447744662).

The spelling of 142124323421 in words is "one hundred forty-two billion, one hundred twenty-four million, three hundred twenty-three thousand, four hundred twenty-one".